Unit Conversion Calculator
Instantly convert between units of length, weight, temperature, speed, volume, area, data, pressure, energy, and time — all in one place.
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Formula: 1 m = 3.2808399 ft
⚡ Common Length Conversions
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Result
3.2808399
Foot
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10 categories covering the most common unit conversions used in science, engineering, cooking, travel, and everyday life.
Length
Length conversions span from the nanometre scale of atomic physics to light-years used in astronomy. The metre is the SI base unit.
Weight
The kilogram is the SI base unit of mass. Imperial units (oz, lb, st) are still common in the US and UK for everyday measurements.
Temperature
Celsius is used globally for weather; Fahrenheit in the US; Kelvin in science (starts at absolute zero). Rankine is Fahrenheit-based Kelvin.
Speed
Speed measures distance per time. Mach 1 (the speed of sound) varies with altitude and temperature — ~340 m/s at sea level.
Volume
US and UK gallons differ: 1 US gallon = 3.785 L, 1 UK gallon = 4.546 L. Always clarify when working with international recipes or fuel.
Data
Data uses binary prefixes: 1 KB = 1,024 bytes. Confusion arises because hard drive manufacturers use 1 KB = 1,000 bytes (SI standard).
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SI Base Units
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