20 mm = 0.7874 in, 20 millimeters equals 0.7874 inches.
A decimal is what a calculator gives you; a tape measure gives you a fraction. 20 mm = 0.7874″ = 0 13/16″ — the fraction reading is how this measurement is actually marked on a rule.
| Rule precision | Fraction reading | As a decimal | Difference from exact |
|---|---|---|---|
| Nearest 1/16 | 0 13/16 ″ | 0.8125 | ±0.0251 in / ±0.637 mm |
| Nearest 1/32 | 0 25/32 ″ | 0.7812 | ±0.0062 in / ±0.156 mm |
| Nearest 1/64 | 0 25/32 ″ | 0.7874 | same reading as the row above |
As feet and inches, the same measurement reads 0' 0 13/16″.
Paste your measurements below, one per line, and get every value back as a decimal and as the fraction you would read off a rule. Built for working from a cut list rather than a single number.
| millimeters | inches (decimal) | Fraction (1/16) | ft + in |
|---|
All calculations run locally in your browser, nothing is uploaded.
| millimeters (mm) | inches (in) |
|---|---|
| 10 mm | 0.3937 in |
| 15 mm | 0.5906 in |
| 18 mm | 0.7087 in |
| 19 mm | 0.748 in |
| 20 mm | 0.7874 in |
| 21 mm | 0.8268 in |
| 22 mm | 0.8661 in |
| 25 mm | 0.9843 in |
| 30 mm | 1.181 in |
| 40 mm | 1.575 in |
This page answers the question "what is 20 mm to inches?" directly: the answer is 0.7874 in. If you searched the spelling without a space, 20mm to inches, it is exactly the same conversion. For any other value, use the converter above or the full millimeters to inches converter, which includes the formula, a step-by-step explanation and a longer conversion table.
20 millimeters equals 0.7874 inches. To get this, multiply 20 by the conversion factor 0.0393701 in per mm.
Type 20 into the converter above and read the result, it is calculated instantly in your browser. The same answer applies whether you write 20 mm to inches or 20mm to inches.
Yes. 20mm to inches and 20 mm to inches are two spellings of the same conversion, the answer is 0.7874 in either way.