The inch (US/UK customary) and the meter (metric) both have exact definitions, making this a precise length conversion.
How it works
Multiplying inches by 0.0254 gives meters; dividing meters by that same constant gives inches back. Type into either field and the other updates instantly.
What this does not include
This does not include centimeters — for that more commonly used metric unit, use this site’s cm-to-in calculator instead.
How to use this calculator
- Enter a value in either inches or meters — the other field fills in automatically.
Frequently asked questions
Why is 1 inch exactly 0.0254 m?
It’s the exact international definition set by a 1959 agreement standardizing the inch.
Where is this conversion most commonly needed?
Engineering specifications and international product dimensions that mix metric and imperial units.
Is this different from converting inches to centimeters?
Only in scale — a meter is 100 centimeters, so this handles the larger unit directly without an intermediate centimeter step.
