How to use the unit converter

Pick a category (length, weight, temperature, area, volume or data size), type a value, and every other unit updates instantly — no button to press. The converter runs entirely in your browser: nothing you type is uploaded anywhere, so it keeps working even on slow connections.

Tips

• Temperature is the only non-linear category: Celsius, Fahrenheit and Kelvin are converted with their formulas, not a simple multiplier.
• Data sizes use binary units (1 KB = 1024 bytes), which is how storage and file sizes are actually reported.
• Backwards too: change the value in any row and the rest follow — every unit is both input and output.

FAQ

Is it really free? Yes — free, no account, no watermark, no limit. Does it upload my numbers? No, all conversion happens locally in your browser.