Unit Converter
Convert length, weight, and temperature between metric and imperial units — updated live as you type.
How to Convert Units
- Choose a category — Length, Weight, or Temperature — using the pills at the top of the tool.
- Enter a value in the "From" field and pick the starting unit from the dropdown.
- Pick the target unit in the "To" dropdown — the converted value updates instantly as you type.
- Click "Swap Units" to flip the From/To units and see the reverse conversion.
Frequently Asked Questions
Why does temperature use a different conversion method than length or weight?
Length and weight conversions are simple multiplication (e.g., 1 inch = 0.0254 meters) because they share a zero point. Temperature scales (Celsius, Fahrenheit, Kelvin) don't share a zero point, so the tool first converts your value to Celsius internally, then converts from Celsius to your target unit.
How accurate are the length and weight conversions?
Conversions use standard international definitions (e.g., 1 mile = 1609.344 meters, 1 pound = 0.453592 kilograms) and round the result to five decimal places, which is precise enough for everyday cooking, DIY, and travel use.
Can I convert between categories, like meters to pounds?
No — Length, Weight, and Temperature are separate unit systems that can't be meaningfully converted between each other. Switching categories with the pills resets the From and To dropdowns to that category's units.
What happens if I leave the input blank or type letters?
The tool needs a numeric value to convert; if the field is empty or not a number, the status message asks you to enter a number instead of showing a result.
Does the Swap Units button also swap the numeric value?
No, it swaps only the selected From and To units, not the number you typed — this lets you quickly see the reverse conversion rate for the same figure.