Vitamin B12: pg/mL to pmol/L

US labs print vitamin B12 in pg/mL, most European labs in pmol/L. To convert, divide pg/mL by 1.3554; to go back, multiply pmol/L by 1.3554.

Value

pg/mL

Same value in295.1pmol/L

pmol/L = pg/mL ÷ 1.3554 · molar mass 1355.37 g/mol

This converter changes units only. It doesn’t tell you whether a number is in or out of any range: that depends on the range printed by your own lab, and on your doctor. Soma does not diagnose and is not medical advice.

The formula

pg/mL → pmol/L: pmol/L = pg/mL ÷ 1.3554
pmol/L → pg/mL: pg/mL = pmol/L × 1.3554
Where 1.3554 comes from: pg/mL counts the weight of vitamin B12 in a volume of blood, pmol/L the number of molecules. One mole of cyanocobalamin weighs 1355.37 g; with that and the difference in volume, one pmol/L is 1.3554 pg/mL.

What the values mean

Typical ranges as the MedlinePlus Medical Encyclopedia gives them, in both units. They are for orientation only: your lab may use other ranges, and a result is read against the range printed on its own report.

Group	pg/mL	pmol/L
Typical range	299–1054	221–778
A possible sign of B12 deficiency	below 299	below 221

Labs and guidelines draw the line for a deficiency at different values; the one on your report is the one to go by.

Source: Vitamin B12 level, MedlinePlus Medical Encyclopedia (U.S. National Library of Medicine), “Normal Results”. The second unit is converted here and rounded.

Common values, converted

Straight conversions, rounded. The table doesn’t mark any value as normal or not; your lab’s report gives its own range.

pg/mL	pmol/L
100 pg/mL	73.8 pmol/L
200 pg/mL	147.6 pmol/L
300 pg/mL	221.3 pmol/L
400 pg/mL	295.1 pmol/L
500 pg/mL	368.9 pmol/L
600 pg/mL	442.7 pmol/L
700 pg/mL	516.5 pmol/L
800 pg/mL	590.2 pmol/L
900 pg/mL	664 pmol/L
1000 pg/mL	737.8 pmol/L

pmol/L	pg/mL
100 pmol/L	135.5 pg/mL
200 pmol/L	271.1 pg/mL
300 pmol/L	406.6 pg/mL
400 pmol/L	542.1 pg/mL
500 pmol/L	677.7 pg/mL
600 pmol/L	813.2 pg/mL
700 pmol/L	948.8 pg/mL
800 pmol/L	1084 pg/mL

Show all 221 values: 50–2500 pg/mL in pmol/L

50 pg/mL = 36.9 pmol/L
55 pg/mL = 40.6 pmol/L
60 pg/mL = 44.3 pmol/L
65 pg/mL = 48 pmol/L
70 pg/mL = 51.6 pmol/L
75 pg/mL = 55.3 pmol/L
80 pg/mL = 59 pmol/L
85 pg/mL = 62.7 pmol/L
90 pg/mL = 66.4 pmol/L
95 pg/mL = 70.1 pmol/L
100 pg/mL = 73.8 pmol/L
105 pg/mL = 77.5 pmol/L
110 pg/mL = 81.2 pmol/L
115 pg/mL = 84.8 pmol/L
120 pg/mL = 88.5 pmol/L
125 pg/mL = 92.2 pmol/L
130 pg/mL = 95.9 pmol/L
135 pg/mL = 99.6 pmol/L
140 pg/mL = 103.3 pmol/L
145 pg/mL = 107 pmol/L
150 pg/mL = 110.7 pmol/L
155 pg/mL = 114.4 pmol/L
160 pg/mL = 118 pmol/L
165 pg/mL = 121.7 pmol/L
170 pg/mL = 125.4 pmol/L
175 pg/mL = 129.1 pmol/L
180 pg/mL = 132.8 pmol/L
185 pg/mL = 136.5 pmol/L
190 pg/mL = 140.2 pmol/L
195 pg/mL = 143.9 pmol/L
200 pg/mL = 147.6 pmol/L
205 pg/mL = 151.3 pmol/L
210 pg/mL = 154.9 pmol/L
215 pg/mL = 158.6 pmol/L
220 pg/mL = 162.3 pmol/L
225 pg/mL = 166 pmol/L
230 pg/mL = 169.7 pmol/L
235 pg/mL = 173.4 pmol/L
240 pg/mL = 177.1 pmol/L
245 pg/mL = 180.8 pmol/L
250 pg/mL = 184.5 pmol/L
255 pg/mL = 188.1 pmol/L
260 pg/mL = 191.8 pmol/L
265 pg/mL = 195.5 pmol/L
270 pg/mL = 199.2 pmol/L
275 pg/mL = 202.9 pmol/L
280 pg/mL = 206.6 pmol/L
285 pg/mL = 210.3 pmol/L
290 pg/mL = 214 pmol/L
295 pg/mL = 217.7 pmol/L
300 pg/mL = 221.3 pmol/L
305 pg/mL = 225 pmol/L
310 pg/mL = 228.7 pmol/L
315 pg/mL = 232.4 pmol/L
320 pg/mL = 236.1 pmol/L
325 pg/mL = 239.8 pmol/L
330 pg/mL = 243.5 pmol/L
335 pg/mL = 247.2 pmol/L
340 pg/mL = 250.9 pmol/L
345 pg/mL = 254.5 pmol/L
350 pg/mL = 258.2 pmol/L
355 pg/mL = 261.9 pmol/L
360 pg/mL = 265.6 pmol/L
365 pg/mL = 269.3 pmol/L
370 pg/mL = 273 pmol/L
375 pg/mL = 276.7 pmol/L
380 pg/mL = 280.4 pmol/L
385 pg/mL = 284.1 pmol/L
390 pg/mL = 287.7 pmol/L
395 pg/mL = 291.4 pmol/L
400 pg/mL = 295.1 pmol/L
405 pg/mL = 298.8 pmol/L
410 pg/mL = 302.5 pmol/L
415 pg/mL = 306.2 pmol/L
420 pg/mL = 309.9 pmol/L
425 pg/mL = 313.6 pmol/L
430 pg/mL = 317.3 pmol/L
435 pg/mL = 320.9 pmol/L
440 pg/mL = 324.6 pmol/L
445 pg/mL = 328.3 pmol/L
450 pg/mL = 332 pmol/L
455 pg/mL = 335.7 pmol/L
460 pg/mL = 339.4 pmol/L
465 pg/mL = 343.1 pmol/L
470 pg/mL = 346.8 pmol/L
475 pg/mL = 350.5 pmol/L
480 pg/mL = 354.1 pmol/L
485 pg/mL = 357.8 pmol/L
490 pg/mL = 361.5 pmol/L
495 pg/mL = 365.2 pmol/L
500 pg/mL = 368.9 pmol/L
505 pg/mL = 372.6 pmol/L
510 pg/mL = 376.3 pmol/L
515 pg/mL = 380 pmol/L
520 pg/mL = 383.7 pmol/L
525 pg/mL = 387.3 pmol/L
530 pg/mL = 391 pmol/L
535 pg/mL = 394.7 pmol/L
540 pg/mL = 398.4 pmol/L
545 pg/mL = 402.1 pmol/L
550 pg/mL = 405.8 pmol/L
555 pg/mL = 409.5 pmol/L
560 pg/mL = 413.2 pmol/L
565 pg/mL = 416.9 pmol/L
570 pg/mL = 420.5 pmol/L
575 pg/mL = 424.2 pmol/L
580 pg/mL = 427.9 pmol/L
585 pg/mL = 431.6 pmol/L
590 pg/mL = 435.3 pmol/L
595 pg/mL = 439 pmol/L
600 pg/mL = 442.7 pmol/L
605 pg/mL = 446.4 pmol/L
610 pg/mL = 450.1 pmol/L
615 pg/mL = 453.8 pmol/L
620 pg/mL = 457.4 pmol/L
625 pg/mL = 461.1 pmol/L
630 pg/mL = 464.8 pmol/L
635 pg/mL = 468.5 pmol/L
640 pg/mL = 472.2 pmol/L
645 pg/mL = 475.9 pmol/L
650 pg/mL = 479.6 pmol/L
655 pg/mL = 483.3 pmol/L
660 pg/mL = 487 pmol/L
665 pg/mL = 490.6 pmol/L
670 pg/mL = 494.3 pmol/L
675 pg/mL = 498 pmol/L
680 pg/mL = 501.7 pmol/L
685 pg/mL = 505.4 pmol/L
690 pg/mL = 509.1 pmol/L
695 pg/mL = 512.8 pmol/L
700 pg/mL = 516.5 pmol/L
705 pg/mL = 520.2 pmol/L
710 pg/mL = 523.8 pmol/L
715 pg/mL = 527.5 pmol/L
720 pg/mL = 531.2 pmol/L
725 pg/mL = 534.9 pmol/L
730 pg/mL = 538.6 pmol/L
735 pg/mL = 542.3 pmol/L
740 pg/mL = 546 pmol/L
745 pg/mL = 549.7 pmol/L
750 pg/mL = 553.4 pmol/L
755 pg/mL = 557 pmol/L
760 pg/mL = 560.7 pmol/L
765 pg/mL = 564.4 pmol/L
770 pg/mL = 568.1 pmol/L
775 pg/mL = 571.8 pmol/L
780 pg/mL = 575.5 pmol/L
785 pg/mL = 579.2 pmol/L
790 pg/mL = 582.9 pmol/L
795 pg/mL = 586.6 pmol/L
800 pg/mL = 590.2 pmol/L
805 pg/mL = 593.9 pmol/L
810 pg/mL = 597.6 pmol/L
815 pg/mL = 601.3 pmol/L
820 pg/mL = 605 pmol/L
825 pg/mL = 608.7 pmol/L
830 pg/mL = 612.4 pmol/L
835 pg/mL = 616.1 pmol/L
840 pg/mL = 619.8 pmol/L
845 pg/mL = 623.4 pmol/L
850 pg/mL = 627.1 pmol/L
855 pg/mL = 630.8 pmol/L
860 pg/mL = 634.5 pmol/L
865 pg/mL = 638.2 pmol/L
870 pg/mL = 641.9 pmol/L
875 pg/mL = 645.6 pmol/L
880 pg/mL = 649.3 pmol/L
885 pg/mL = 653 pmol/L
890 pg/mL = 656.6 pmol/L
895 pg/mL = 660.3 pmol/L
900 pg/mL = 664 pmol/L
905 pg/mL = 667.7 pmol/L
910 pg/mL = 671.4 pmol/L
915 pg/mL = 675.1 pmol/L
920 pg/mL = 678.8 pmol/L
925 pg/mL = 682.5 pmol/L
930 pg/mL = 686.2 pmol/L
935 pg/mL = 689.8 pmol/L
940 pg/mL = 693.5 pmol/L
945 pg/mL = 697.2 pmol/L
950 pg/mL = 700.9 pmol/L
955 pg/mL = 704.6 pmol/L
960 pg/mL = 708.3 pmol/L
965 pg/mL = 712 pmol/L
970 pg/mL = 715.7 pmol/L
975 pg/mL = 719.4 pmol/L
980 pg/mL = 723 pmol/L
985 pg/mL = 726.7 pmol/L
990 pg/mL = 730.4 pmol/L
995 pg/mL = 734.1 pmol/L
1000 pg/mL = 737.8 pmol/L
1050 pg/mL = 774.7 pmol/L
1100 pg/mL = 811.6 pmol/L
1150 pg/mL = 848.5 pmol/L
1200 pg/mL = 885.4 pmol/L
1250 pg/mL = 922.3 pmol/L
1300 pg/mL = 959.1 pmol/L
1350 pg/mL = 996 pmol/L
1400 pg/mL = 1033 pmol/L
1450 pg/mL = 1070 pmol/L
1500 pg/mL = 1107 pmol/L
1550 pg/mL = 1144 pmol/L
1600 pg/mL = 1180 pmol/L
1650 pg/mL = 1217 pmol/L
1700 pg/mL = 1254 pmol/L
1750 pg/mL = 1291 pmol/L
1800 pg/mL = 1328 pmol/L
1850 pg/mL = 1365 pmol/L
1900 pg/mL = 1402 pmol/L
1950 pg/mL = 1439 pmol/L
2000 pg/mL = 1476 pmol/L
2050 pg/mL = 1513 pmol/L
2100 pg/mL = 1549 pmol/L
2150 pg/mL = 1586 pmol/L
2200 pg/mL = 1623 pmol/L
2250 pg/mL = 1660 pmol/L
2300 pg/mL = 1697 pmol/L
2350 pg/mL = 1734 pmol/L
2400 pg/mL = 1771 pmol/L
2450 pg/mL = 1808 pmol/L
2500 pg/mL = 1845 pmol/L

Show all 511 values: 30–1800 pmol/L in pg/mL

30 pmol/L = 40.7 pg/mL
31 pmol/L = 42 pg/mL
32 pmol/L = 43.4 pg/mL
33 pmol/L = 44.7 pg/mL
34 pmol/L = 46.1 pg/mL
35 pmol/L = 47.4 pg/mL
36 pmol/L = 48.8 pg/mL
37 pmol/L = 50.1 pg/mL
38 pmol/L = 51.5 pg/mL
39 pmol/L = 52.9 pg/mL
40 pmol/L = 54.2 pg/mL
41 pmol/L = 55.6 pg/mL
42 pmol/L = 56.9 pg/mL
43 pmol/L = 58.3 pg/mL
44 pmol/L = 59.6 pg/mL
45 pmol/L = 61 pg/mL
46 pmol/L = 62.3 pg/mL
47 pmol/L = 63.7 pg/mL
48 pmol/L = 65.1 pg/mL
49 pmol/L = 66.4 pg/mL
50 pmol/L = 67.8 pg/mL
51 pmol/L = 69.1 pg/mL
52 pmol/L = 70.5 pg/mL
53 pmol/L = 71.8 pg/mL
54 pmol/L = 73.2 pg/mL
55 pmol/L = 74.5 pg/mL
56 pmol/L = 75.9 pg/mL
57 pmol/L = 77.3 pg/mL
58 pmol/L = 78.6 pg/mL
59 pmol/L = 80 pg/mL
60 pmol/L = 81.3 pg/mL
61 pmol/L = 82.7 pg/mL
62 pmol/L = 84 pg/mL
63 pmol/L = 85.4 pg/mL
64 pmol/L = 86.7 pg/mL
65 pmol/L = 88.1 pg/mL
66 pmol/L = 89.5 pg/mL
67 pmol/L = 90.8 pg/mL
68 pmol/L = 92.2 pg/mL
69 pmol/L = 93.5 pg/mL
70 pmol/L = 94.9 pg/mL
71 pmol/L = 96.2 pg/mL
72 pmol/L = 97.6 pg/mL
73 pmol/L = 98.9 pg/mL
74 pmol/L = 100.3 pg/mL
75 pmol/L = 101.7 pg/mL
76 pmol/L = 103 pg/mL
77 pmol/L = 104.4 pg/mL
78 pmol/L = 105.7 pg/mL
79 pmol/L = 107.1 pg/mL
80 pmol/L = 108.4 pg/mL
81 pmol/L = 109.8 pg/mL
82 pmol/L = 111.1 pg/mL
83 pmol/L = 112.5 pg/mL
84 pmol/L = 113.9 pg/mL
85 pmol/L = 115.2 pg/mL
86 pmol/L = 116.6 pg/mL
87 pmol/L = 117.9 pg/mL
88 pmol/L = 119.3 pg/mL
89 pmol/L = 120.6 pg/mL
90 pmol/L = 122 pg/mL
91 pmol/L = 123.3 pg/mL
92 pmol/L = 124.7 pg/mL
93 pmol/L = 126 pg/mL
94 pmol/L = 127.4 pg/mL
95 pmol/L = 128.8 pg/mL
96 pmol/L = 130.1 pg/mL
97 pmol/L = 131.5 pg/mL
98 pmol/L = 132.8 pg/mL
99 pmol/L = 134.2 pg/mL
100 pmol/L = 135.5 pg/mL
101 pmol/L = 136.9 pg/mL
102 pmol/L = 138.2 pg/mL
103 pmol/L = 139.6 pg/mL
104 pmol/L = 141 pg/mL
105 pmol/L = 142.3 pg/mL
106 pmol/L = 143.7 pg/mL
107 pmol/L = 145 pg/mL
108 pmol/L = 146.4 pg/mL
109 pmol/L = 147.7 pg/mL
110 pmol/L = 149.1 pg/mL
111 pmol/L = 150.4 pg/mL
112 pmol/L = 151.8 pg/mL
113 pmol/L = 153.2 pg/mL
114 pmol/L = 154.5 pg/mL
115 pmol/L = 155.9 pg/mL
116 pmol/L = 157.2 pg/mL
117 pmol/L = 158.6 pg/mL
118 pmol/L = 159.9 pg/mL
119 pmol/L = 161.3 pg/mL
120 pmol/L = 162.6 pg/mL
121 pmol/L = 164 pg/mL
122 pmol/L = 165.4 pg/mL
123 pmol/L = 166.7 pg/mL
124 pmol/L = 168.1 pg/mL
125 pmol/L = 169.4 pg/mL
126 pmol/L = 170.8 pg/mL
127 pmol/L = 172.1 pg/mL
128 pmol/L = 173.5 pg/mL
129 pmol/L = 174.8 pg/mL
130 pmol/L = 176.2 pg/mL
131 pmol/L = 177.6 pg/mL
132 pmol/L = 178.9 pg/mL
133 pmol/L = 180.3 pg/mL
134 pmol/L = 181.6 pg/mL
135 pmol/L = 183 pg/mL
136 pmol/L = 184.3 pg/mL
137 pmol/L = 185.7 pg/mL
138 pmol/L = 187 pg/mL
139 pmol/L = 188.4 pg/mL
140 pmol/L = 189.8 pg/mL
141 pmol/L = 191.1 pg/mL
142 pmol/L = 192.5 pg/mL
143 pmol/L = 193.8 pg/mL
144 pmol/L = 195.2 pg/mL
145 pmol/L = 196.5 pg/mL
146 pmol/L = 197.9 pg/mL
147 pmol/L = 199.2 pg/mL
148 pmol/L = 200.6 pg/mL
149 pmol/L = 202 pg/mL
150 pmol/L = 203.3 pg/mL
151 pmol/L = 204.7 pg/mL
152 pmol/L = 206 pg/mL
153 pmol/L = 207.4 pg/mL
154 pmol/L = 208.7 pg/mL
155 pmol/L = 210.1 pg/mL
156 pmol/L = 211.4 pg/mL
157 pmol/L = 212.8 pg/mL
158 pmol/L = 214.1 pg/mL
159 pmol/L = 215.5 pg/mL
160 pmol/L = 216.9 pg/mL
161 pmol/L = 218.2 pg/mL
162 pmol/L = 219.6 pg/mL
163 pmol/L = 220.9 pg/mL
164 pmol/L = 222.3 pg/mL
165 pmol/L = 223.6 pg/mL
166 pmol/L = 225 pg/mL
167 pmol/L = 226.3 pg/mL
168 pmol/L = 227.7 pg/mL
169 pmol/L = 229.1 pg/mL
170 pmol/L = 230.4 pg/mL
171 pmol/L = 231.8 pg/mL
172 pmol/L = 233.1 pg/mL
173 pmol/L = 234.5 pg/mL
174 pmol/L = 235.8 pg/mL
175 pmol/L = 237.2 pg/mL
176 pmol/L = 238.5 pg/mL
177 pmol/L = 239.9 pg/mL
178 pmol/L = 241.3 pg/mL
179 pmol/L = 242.6 pg/mL
180 pmol/L = 244 pg/mL
181 pmol/L = 245.3 pg/mL
182 pmol/L = 246.7 pg/mL
183 pmol/L = 248 pg/mL
184 pmol/L = 249.4 pg/mL
185 pmol/L = 250.7 pg/mL
186 pmol/L = 252.1 pg/mL
187 pmol/L = 253.5 pg/mL
188 pmol/L = 254.8 pg/mL
189 pmol/L = 256.2 pg/mL
190 pmol/L = 257.5 pg/mL
191 pmol/L = 258.9 pg/mL
192 pmol/L = 260.2 pg/mL
193 pmol/L = 261.6 pg/mL
194 pmol/L = 262.9 pg/mL
195 pmol/L = 264.3 pg/mL
196 pmol/L = 265.7 pg/mL
197 pmol/L = 267 pg/mL
198 pmol/L = 268.4 pg/mL
199 pmol/L = 269.7 pg/mL
200 pmol/L = 271.1 pg/mL
201 pmol/L = 272.4 pg/mL
202 pmol/L = 273.8 pg/mL
203 pmol/L = 275.1 pg/mL
204 pmol/L = 276.5 pg/mL
205 pmol/L = 277.9 pg/mL
206 pmol/L = 279.2 pg/mL
207 pmol/L = 280.6 pg/mL
208 pmol/L = 281.9 pg/mL
209 pmol/L = 283.3 pg/mL
210 pmol/L = 284.6 pg/mL
211 pmol/L = 286 pg/mL
212 pmol/L = 287.3 pg/mL
213 pmol/L = 288.7 pg/mL
214 pmol/L = 290 pg/mL
215 pmol/L = 291.4 pg/mL
216 pmol/L = 292.8 pg/mL
217 pmol/L = 294.1 pg/mL
218 pmol/L = 295.5 pg/mL
219 pmol/L = 296.8 pg/mL
220 pmol/L = 298.2 pg/mL
221 pmol/L = 299.5 pg/mL
222 pmol/L = 300.9 pg/mL
223 pmol/L = 302.2 pg/mL
224 pmol/L = 303.6 pg/mL
225 pmol/L = 305 pg/mL
226 pmol/L = 306.3 pg/mL
227 pmol/L = 307.7 pg/mL
228 pmol/L = 309 pg/mL
229 pmol/L = 310.4 pg/mL
230 pmol/L = 311.7 pg/mL
231 pmol/L = 313.1 pg/mL
232 pmol/L = 314.4 pg/mL
233 pmol/L = 315.8 pg/mL
234 pmol/L = 317.2 pg/mL
235 pmol/L = 318.5 pg/mL
236 pmol/L = 319.9 pg/mL
237 pmol/L = 321.2 pg/mL
238 pmol/L = 322.6 pg/mL
239 pmol/L = 323.9 pg/mL
240 pmol/L = 325.3 pg/mL
241 pmol/L = 326.6 pg/mL
242 pmol/L = 328 pg/mL
243 pmol/L = 329.4 pg/mL
244 pmol/L = 330.7 pg/mL
245 pmol/L = 332.1 pg/mL
246 pmol/L = 333.4 pg/mL
247 pmol/L = 334.8 pg/mL
248 pmol/L = 336.1 pg/mL
249 pmol/L = 337.5 pg/mL
250 pmol/L = 338.8 pg/mL
251 pmol/L = 340.2 pg/mL
252 pmol/L = 341.6 pg/mL
253 pmol/L = 342.9 pg/mL
254 pmol/L = 344.3 pg/mL
255 pmol/L = 345.6 pg/mL
256 pmol/L = 347 pg/mL
257 pmol/L = 348.3 pg/mL
258 pmol/L = 349.7 pg/mL
259 pmol/L = 351 pg/mL
260 pmol/L = 352.4 pg/mL
261 pmol/L = 353.8 pg/mL
262 pmol/L = 355.1 pg/mL
263 pmol/L = 356.5 pg/mL
264 pmol/L = 357.8 pg/mL
265 pmol/L = 359.2 pg/mL
266 pmol/L = 360.5 pg/mL
267 pmol/L = 361.9 pg/mL
268 pmol/L = 363.2 pg/mL
269 pmol/L = 364.6 pg/mL
270 pmol/L = 365.9 pg/mL
271 pmol/L = 367.3 pg/mL
272 pmol/L = 368.7 pg/mL
273 pmol/L = 370 pg/mL
274 pmol/L = 371.4 pg/mL
275 pmol/L = 372.7 pg/mL
276 pmol/L = 374.1 pg/mL
277 pmol/L = 375.4 pg/mL
278 pmol/L = 376.8 pg/mL
279 pmol/L = 378.1 pg/mL
280 pmol/L = 379.5 pg/mL
281 pmol/L = 380.9 pg/mL
282 pmol/L = 382.2 pg/mL
283 pmol/L = 383.6 pg/mL
284 pmol/L = 384.9 pg/mL
285 pmol/L = 386.3 pg/mL
286 pmol/L = 387.6 pg/mL
287 pmol/L = 389 pg/mL
288 pmol/L = 390.3 pg/mL
289 pmol/L = 391.7 pg/mL
290 pmol/L = 393.1 pg/mL
291 pmol/L = 394.4 pg/mL
292 pmol/L = 395.8 pg/mL
293 pmol/L = 397.1 pg/mL
294 pmol/L = 398.5 pg/mL
295 pmol/L = 399.8 pg/mL
296 pmol/L = 401.2 pg/mL
297 pmol/L = 402.5 pg/mL
298 pmol/L = 403.9 pg/mL
299 pmol/L = 405.3 pg/mL
300 pmol/L = 406.6 pg/mL
301 pmol/L = 408 pg/mL
302 pmol/L = 409.3 pg/mL
303 pmol/L = 410.7 pg/mL
304 pmol/L = 412 pg/mL
305 pmol/L = 413.4 pg/mL
306 pmol/L = 414.7 pg/mL
307 pmol/L = 416.1 pg/mL
308 pmol/L = 417.5 pg/mL
309 pmol/L = 418.8 pg/mL
310 pmol/L = 420.2 pg/mL
311 pmol/L = 421.5 pg/mL
312 pmol/L = 422.9 pg/mL
313 pmol/L = 424.2 pg/mL
314 pmol/L = 425.6 pg/mL
315 pmol/L = 426.9 pg/mL
316 pmol/L = 428.3 pg/mL
317 pmol/L = 429.7 pg/mL
318 pmol/L = 431 pg/mL
319 pmol/L = 432.4 pg/mL
320 pmol/L = 433.7 pg/mL
321 pmol/L = 435.1 pg/mL
322 pmol/L = 436.4 pg/mL
323 pmol/L = 437.8 pg/mL
324 pmol/L = 439.1 pg/mL
325 pmol/L = 440.5 pg/mL
326 pmol/L = 441.9 pg/mL
327 pmol/L = 443.2 pg/mL
328 pmol/L = 444.6 pg/mL
329 pmol/L = 445.9 pg/mL
330 pmol/L = 447.3 pg/mL
331 pmol/L = 448.6 pg/mL
332 pmol/L = 450 pg/mL
333 pmol/L = 451.3 pg/mL
334 pmol/L = 452.7 pg/mL
335 pmol/L = 454 pg/mL
336 pmol/L = 455.4 pg/mL
337 pmol/L = 456.8 pg/mL
338 pmol/L = 458.1 pg/mL
339 pmol/L = 459.5 pg/mL
340 pmol/L = 460.8 pg/mL
341 pmol/L = 462.2 pg/mL
342 pmol/L = 463.5 pg/mL
343 pmol/L = 464.9 pg/mL
344 pmol/L = 466.2 pg/mL
345 pmol/L = 467.6 pg/mL
346 pmol/L = 469 pg/mL
347 pmol/L = 470.3 pg/mL
348 pmol/L = 471.7 pg/mL
349 pmol/L = 473 pg/mL
350 pmol/L = 474.4 pg/mL
351 pmol/L = 475.7 pg/mL
352 pmol/L = 477.1 pg/mL
353 pmol/L = 478.4 pg/mL
354 pmol/L = 479.8 pg/mL
355 pmol/L = 481.2 pg/mL
356 pmol/L = 482.5 pg/mL
357 pmol/L = 483.9 pg/mL
358 pmol/L = 485.2 pg/mL
359 pmol/L = 486.6 pg/mL
360 pmol/L = 487.9 pg/mL
361 pmol/L = 489.3 pg/mL
362 pmol/L = 490.6 pg/mL
363 pmol/L = 492 pg/mL
364 pmol/L = 493.4 pg/mL
365 pmol/L = 494.7 pg/mL
366 pmol/L = 496.1 pg/mL
367 pmol/L = 497.4 pg/mL
368 pmol/L = 498.8 pg/mL
369 pmol/L = 500.1 pg/mL
370 pmol/L = 501.5 pg/mL
371 pmol/L = 502.8 pg/mL
372 pmol/L = 504.2 pg/mL
373 pmol/L = 505.6 pg/mL
374 pmol/L = 506.9 pg/mL
375 pmol/L = 508.3 pg/mL
376 pmol/L = 509.6 pg/mL
377 pmol/L = 511 pg/mL
378 pmol/L = 512.3 pg/mL
379 pmol/L = 513.7 pg/mL
380 pmol/L = 515 pg/mL
381 pmol/L = 516.4 pg/mL
382 pmol/L = 517.8 pg/mL
383 pmol/L = 519.1 pg/mL
384 pmol/L = 520.5 pg/mL
385 pmol/L = 521.8 pg/mL
386 pmol/L = 523.2 pg/mL
387 pmol/L = 524.5 pg/mL
388 pmol/L = 525.9 pg/mL
389 pmol/L = 527.2 pg/mL
390 pmol/L = 528.6 pg/mL
391 pmol/L = 529.9 pg/mL
392 pmol/L = 531.3 pg/mL
393 pmol/L = 532.7 pg/mL
394 pmol/L = 534 pg/mL
395 pmol/L = 535.4 pg/mL
396 pmol/L = 536.7 pg/mL
397 pmol/L = 538.1 pg/mL
398 pmol/L = 539.4 pg/mL
399 pmol/L = 540.8 pg/mL
400 pmol/L = 542.1 pg/mL
410 pmol/L = 555.7 pg/mL
420 pmol/L = 569.3 pg/mL
430 pmol/L = 582.8 pg/mL
440 pmol/L = 596.4 pg/mL
450 pmol/L = 609.9 pg/mL
460 pmol/L = 623.5 pg/mL
470 pmol/L = 637 pg/mL
480 pmol/L = 650.6 pg/mL
490 pmol/L = 664.1 pg/mL
500 pmol/L = 677.7 pg/mL
510 pmol/L = 691.2 pg/mL
520 pmol/L = 704.8 pg/mL
530 pmol/L = 718.3 pg/mL
540 pmol/L = 731.9 pg/mL
550 pmol/L = 745.5 pg/mL
560 pmol/L = 759 pg/mL
570 pmol/L = 772.6 pg/mL
580 pmol/L = 786.1 pg/mL
590 pmol/L = 799.7 pg/mL
600 pmol/L = 813.2 pg/mL
610 pmol/L = 826.8 pg/mL
620 pmol/L = 840.3 pg/mL
630 pmol/L = 853.9 pg/mL
640 pmol/L = 867.4 pg/mL
650 pmol/L = 881 pg/mL
660 pmol/L = 894.5 pg/mL
670 pmol/L = 908.1 pg/mL
680 pmol/L = 921.7 pg/mL
690 pmol/L = 935.2 pg/mL
700 pmol/L = 948.8 pg/mL
710 pmol/L = 962.3 pg/mL
720 pmol/L = 975.9 pg/mL
730 pmol/L = 989.4 pg/mL
740 pmol/L = 1003 pg/mL
750 pmol/L = 1017 pg/mL
760 pmol/L = 1030 pg/mL
770 pmol/L = 1044 pg/mL
780 pmol/L = 1057 pg/mL
790 pmol/L = 1071 pg/mL
800 pmol/L = 1084 pg/mL
810 pmol/L = 1098 pg/mL
820 pmol/L = 1111 pg/mL
830 pmol/L = 1125 pg/mL
840 pmol/L = 1139 pg/mL
850 pmol/L = 1152 pg/mL
860 pmol/L = 1166 pg/mL
870 pmol/L = 1179 pg/mL
880 pmol/L = 1193 pg/mL
890 pmol/L = 1206 pg/mL
900 pmol/L = 1220 pg/mL
910 pmol/L = 1233 pg/mL
920 pmol/L = 1247 pg/mL
930 pmol/L = 1260 pg/mL
940 pmol/L = 1274 pg/mL
950 pmol/L = 1288 pg/mL
960 pmol/L = 1301 pg/mL
970 pmol/L = 1315 pg/mL
980 pmol/L = 1328 pg/mL
990 pmol/L = 1342 pg/mL
1000 pmol/L = 1355 pg/mL
1010 pmol/L = 1369 pg/mL
1020 pmol/L = 1382 pg/mL
1030 pmol/L = 1396 pg/mL
1040 pmol/L = 1410 pg/mL
1050 pmol/L = 1423 pg/mL
1060 pmol/L = 1437 pg/mL
1070 pmol/L = 1450 pg/mL
1080 pmol/L = 1464 pg/mL
1090 pmol/L = 1477 pg/mL
1100 pmol/L = 1491 pg/mL
1110 pmol/L = 1504 pg/mL
1120 pmol/L = 1518 pg/mL
1130 pmol/L = 1532 pg/mL
1140 pmol/L = 1545 pg/mL
1150 pmol/L = 1559 pg/mL
1160 pmol/L = 1572 pg/mL
1170 pmol/L = 1586 pg/mL
1180 pmol/L = 1599 pg/mL
1190 pmol/L = 1613 pg/mL
1200 pmol/L = 1626 pg/mL
1210 pmol/L = 1640 pg/mL
1220 pmol/L = 1654 pg/mL
1230 pmol/L = 1667 pg/mL
1240 pmol/L = 1681 pg/mL
1250 pmol/L = 1694 pg/mL
1260 pmol/L = 1708 pg/mL
1270 pmol/L = 1721 pg/mL
1280 pmol/L = 1735 pg/mL
1290 pmol/L = 1748 pg/mL
1300 pmol/L = 1762 pg/mL
1310 pmol/L = 1776 pg/mL
1320 pmol/L = 1789 pg/mL
1330 pmol/L = 1803 pg/mL
1340 pmol/L = 1816 pg/mL
1350 pmol/L = 1830 pg/mL
1360 pmol/L = 1843 pg/mL
1370 pmol/L = 1857 pg/mL
1380 pmol/L = 1870 pg/mL
1390 pmol/L = 1884 pg/mL
1400 pmol/L = 1898 pg/mL
1410 pmol/L = 1911 pg/mL
1420 pmol/L = 1925 pg/mL
1430 pmol/L = 1938 pg/mL
1440 pmol/L = 1952 pg/mL
1450 pmol/L = 1965 pg/mL
1460 pmol/L = 1979 pg/mL
1470 pmol/L = 1992 pg/mL
1480 pmol/L = 2006 pg/mL
1490 pmol/L = 2020 pg/mL
1500 pmol/L = 2033 pg/mL
1510 pmol/L = 2047 pg/mL
1520 pmol/L = 2060 pg/mL
1530 pmol/L = 2074 pg/mL
1540 pmol/L = 2087 pg/mL
1550 pmol/L = 2101 pg/mL
1560 pmol/L = 2114 pg/mL
1570 pmol/L = 2128 pg/mL
1580 pmol/L = 2141 pg/mL
1590 pmol/L = 2155 pg/mL
1600 pmol/L = 2169 pg/mL
1610 pmol/L = 2182 pg/mL
1620 pmol/L = 2196 pg/mL
1630 pmol/L = 2209 pg/mL
1640 pmol/L = 2223 pg/mL
1650 pmol/L = 2236 pg/mL
1660 pmol/L = 2250 pg/mL
1670 pmol/L = 2263 pg/mL
1680 pmol/L = 2277 pg/mL
1690 pmol/L = 2291 pg/mL
1700 pmol/L = 2304 pg/mL
1710 pmol/L = 2318 pg/mL
1720 pmol/L = 2331 pg/mL
1730 pmol/L = 2345 pg/mL
1740 pmol/L = 2358 pg/mL
1750 pmol/L = 2372 pg/mL
1760 pmol/L = 2385 pg/mL
1770 pmol/L = 2399 pg/mL
1780 pmol/L = 2413 pg/mL
1790 pmol/L = 2426 pg/mL
1800 pmol/L = 2440 pg/mL

About the test

Vitamin B12 is needed to make red blood cells and for the nervous system. It comes from animal foods.

About the vitamin B12 test · Vitamin B Test — MedlinePlus (U.S. National Library of Medicine).

Questions

Vitamin B12: what levels are typical?

MedlinePlus gives these typical ranges: Typical range: 299–1054 pg/mL (221–778 pmol/L); A possible sign of B12 deficiency: below 299 pg/mL (below 221 pmol/L). Labs differ in method, so your lab may use other ranges; the one on your report is the one to go by.

How do I convert vitamin B12 from pg/mL to pmol/L?

Divide pg/mL by 1.3554. For example, 400 pg/mL is 295.1 pmol/L.

How do I convert vitamin B12 from pmol/L to pg/mL?

Multiply pmol/L by 1.3554. For example, 500 pmol/L is 677.7 pg/mL.

Why is the factor 1.3554?

It follows from the molar mass of cyanocobalamin, 1355.37 g/mol, and from the volume each unit counts in.

Why does my lab’s vitamin B12 range differ from another lab’s?

Each lab sets its range for its own method and equipment, and many ranges differ by age and sex. That’s why a result is best read against the range printed on the same report.

Related conversions

Vitamin B12 400 pg/mL= 295.1 pmol/L

Soma converts straight from the PDF

Share a lab report to Soma, and it reads every row on your phone and converts the units for you, so a Quest result in mg/dL and a Synlab result in mmol/L sit on one chart, each against its own lab’s range. No account, nothing uploaded.

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Sources: PubChem: Cyanocobalamin (cyanocobalamin), molar mass 1355.37 g/mol; the test description from MedlinePlus. Mention of a source doesn’t mean it endorses Soma.