MEASURE A LARGER WORLD
Convert length units and compare the same distance
on two clear scales.
CONVERTED LENGTH
3.28083989501 ft
Display is rounded to 12 significant digits; calculations retain higher precision.
The two rulers below show the same physical length, just in different units.
Illustrative scale — not actual size on your screen.
Convert any length in three simple steps.
Type the length you want to convert.
Choose the source and target units, or swap them.
Read, share or copy your current result.
Product size10 in = 25.4 cmA product listed as 10 in wide is 25.4 cm wide; check which dimension a listing measures.
Drawing and design5 ft = 1.524 mA 5 foot length is 1.524 meters.
Travel distance1 mi = 1.609344 kmA 1 mile trip is 1.609344 kilometers.
11 common length units are available.
Let A be the entered amount and Fs and Ft the source and target meters-per-unit factors. Convert through meters: M = A × Fs; R = M ÷ Ft.
SI prefixes follow the BIPM SI Brochure; customary and nautical definitions follow NIST references. Calculations keep unrounded values; display uses up to 12 significant digits with half-even rounding.
Swap keeps the internal meter value, but the screen shows at most 12 significant digits. Typing that rounded display back as a new amount can introduce a small difference.
One statute mile (mi) is exactly 1,609.344 m; one nautical mile (nmi) is exactly 1,852 m. Use mi for ordinary road distances and nmi when a route is specified in nautical miles.
No. Both tracks fit the same physical distance into the same on-screen width. Their tick numbers differ by unit, but screen pixels are not a measuring scale.
No. The foot here is the international foot, exactly 0.3048 m. The legacy U.S. survey foot has a different definition; check the required unit before using historic survey data.
Zero is valid. Negative values represent signed displacement, not a negative object length. Scientific notation is accepted; the absolute amount cannot exceed 10²⁴, and a nonzero distance in meters must have an absolute value between 10⁻²⁴ and 10²⁴.
Swap preserves the physical distance using the unrounded meter value. Changing the From selector instead keeps the typed number and interprets it in the newly selected unit.
Conversion runs in your browser, but the current result URL contains the amount and units. Anyone receiving or loading that URL, including the hosting service, can see those parameters. Do not use sensitive values.