Where do these numbers come from?
- NISTSP 811 exact unit definitions (1 in = 25.4 mm, 1 lb = 453.59237 g)current edition
- NISTHandbook 44, weights and measurescurrent edition
- King Arthur BakingIngredient Weight Chart (kitchen tools)retrieved Oct 23, 2026
Checked Oct 23, 2026. 1 inch is exactly 25.4 mm (NIST SP 811), so 100 mm ÷ 25.4 = 3.937 in.
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35 mm = 1.378 in
Worked example
35 ÷ 25.4 = 1.378 inches. On a ruler marked in sixteenths, that is about 1 3/8″; in thirty-seconds, 1 3/8″; in sixty-fourths, 1 3/8″. The nearest 1/16 mark (1 3/8″ = 34.92 mm) is off by 0.08 mm.
35 mm is also 3.5 cm.
| Millimeters | Inches | Nearest 1/16 |
|---|---|---|
| 30 mm | 1.1811 | 1 3/16″ |
| 31 mm | 1.2205 | 1 1/4″ |
| 32 mm | 1.2598 | 1 1/4″ |
| 33 mm | 1.2992 | 1 5/16″ |
| 34 mm | 1.3386 | 1 5/16″ |
| 35 mm | 1.378 | 1 3/8″ |
| 36 mm | 1.4173 | 1 7/16″ |
| 37 mm | 1.4567 | 1 7/16″ |
| 38 mm | 1.4961 | 1 1/2″ |
| 39 mm | 1.5354 | 1 9/16″ |
| 40 mm | 1.5748 | 1 9/16″ |
Frequently asked questions
How many inches is 35 mm?
1.378 inches, about 1 3/8″.
What fraction of an inch is 35 mm?
About 1 3/8″ to the nearest 1/32.