Unit Converter online

How to Use the Unit Converter

1. Paste or enter your input into the text field.
2. Configure any options (format, delimiter, encoding, or mode) using the controls above the output.
3. The result updates instantly — no submit button required for most operations.
4. Click Copy or Download to take the output to your next step.

A general-purpose unit converter covering length, mass, volume, temperature, area, speed, pressure, and energy across metric and imperial systems. Pick a category, then choose source and target units; the result updates live as you type. A swap button reverses the direction without re-typing the value.

How the Unit Converter Works

Conversions use exact published factors (e.g. 1 inch = 25.4 mm; 1 pound = 453.59237 g) and the standard linear formulas for temperature. Calculations run in browser-native double precision, so there’s no rounding drift from network round-trips. Useful for quick everyday questions — recipe units, fuel economy, room sizes — without leaving the page.

• Length, mass, volume, temperature, area, speed, pressure, energy
• Metric and imperial systems with common cooking units
• Two-way conversion — swap source and target with one click
• Live-updating result as you type