Unit converter
Convert length, weight, temperature, area, volume, speed, time, and data sizes instantly — exact factors, both directions, right in your browser.
1 Meters = 3.28083989501 Feet
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How it works
- 1
Pick a category — length, weight, temperature, area, volume, speed, time, or data.
- 2
Type a value and choose the units on each side.
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Read the result instantly — or hit swap to convert the other way.
Frequently asked questions
Which units are supported?
Eight categories: length (mm to miles), weight (mg to stone), temperature (°C, °F, K), area (cm² to acres and hectares), volume (mL to US gallons), speed (m/s to knots), time (milliseconds to years), and data size (bytes to terabytes, including KiB/MiB/GiB).
How precise are the conversions?
Factors use the exact international definitions (for example 1 inch = 25.4 mm and 1 pound = 0.45359237 kg), with results shown to 12 significant digits without floating-point noise.
What about KB versus KiB?
Both: KB/MB/GB use the decimal definition (1 KB = 1000 bytes) that drive makers use, and KiB/MiB/GiB use the binary definition (1 KiB = 1024 bytes) that operating systems often report.
Does it work offline?
The math runs entirely in your browser — once the page is open, conversions need no internet at all.