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20 mm to inches
20 mm equals 0.7874 in. This is the exact conversion for 20 mm to inches, derived from exact SI/NIST definitions with the standard conversion factor. It's also written 20 mm to in. See nearby values below, or open the full Unit Converter to convert any other value or unit.
Quick answer
20 mm = 0.7874 in
- 1 mm = 0.0394 in
- Exact definitional conversion factor
Frequently asked questions
What is 20 mm in inches?
20 mm is 0.7874 in. The conversion uses the exact factor 1 mm = 0.0394 in.
How do I convert mm to inches?
Multiply by the exact factor (1 mm = 0.0394 in). Open the full Unit Converter to convert any value.
Is 20 mm to in the same as 20 mm to inches?
Yes — 20 mm to in and 20 mm to inches are the same conversion: 20 mm = 0.7874 in.