Convert inches to meters instantly. This crosses from the imperial to the metric system, and the relationship is fixed and exact: one inch is defined as exactly 0.0254 metres. So to go from inches (in) to meters (m) you multiply by 0.0254 (or divide by 39.3701) — for example, 1 in = 0.0254 m and 100 in = 2.54 m. This c…
1 inch = 0.0254 meter · 1 inch = 0.0254 meter
METRIC (SI)
IMPERIAL / US
NAUTICAL
TYPOGRAPHIC
ASTRONOMICAL
SCIENTIFIC
HISTORICAL & FUN
Enter the length in inches (in) in the value box — the converter defaults to inches → metres.
Read the metre (m) result instantly, or do it by hand: multiply the inches by 0.0254.
Use the inches-to-m table below for common values, or tap ⇄ to convert metres back to inches.
Need another unit? Pick any of the 74 length units in the dropdown, then Share or Embed your conversion.
1 inch = 0.0254 meter · 1 meter = 39.370079 inch
1 inch
2.54 cm
1 foot
30.48 cm
1 yard
0.9144 m
1 mile
1.609344 km
1 nautical mile
1.852 km
1 kilometer
0.621371 mi
1 meter
3.28084 ft
1 light-year
9.4607×10¹² km
1 AU
149,597,870.7 km
1 parsec
3.26156 ly
Length is measured against the metre, the SI base unit, defined by the speed of light. Every unit here is stored as its exact number of metres, so a conversion is simply the input turned into metres and then into the target unit. The metric prefixes run the full modern range — from the quectometre (10⁻³⁰ m) to the quettametre (10³⁰ m), including the ronna and quetta prefixes added in 2022. The imperial and US units use their exact international definitions (an inch is exactly 2.54 cm), while astronomical units such as the light-year, astronomical unit and parsec, and sub-atomic scales like the ångström, Bohr radius and Planck length, extend the range in both directions. Historical and regional units — cubits, ells, versts, the Scandinavian mile — and playful ones like the smoot use common modern equivalents and can vary by source.
Multiply the number of inches by 0.0254 (equivalently, divide by 39.3701). Because one inch is defined as exactly 0.0254 metres, this gives the precise metre value. For example, 50 in × 0.0254 = 1.27 m. The converter does this instantly.
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Last updated: — · 74 length units · Exact SI & imperial definitions · Verified by the EagleCalculator team · Eagle-eyed accuracy for every calculation.