Unit Converter
Convert length, mass, volume, temperature and speed using named, compatible units.
Calculate with your own values
Local processing. No account, uploads or saved history.
Your result
Formula & assumptions
Practical calculators for everyday decisions
10 free calculators for prices, dates, time and dimensions. Review formulas and assumptions, then copy or export your result locally.
Prices & percentages
Dates & work time
Units & dimensions
How to use Unit Converter
- Enter your values and select the applicable mode or units; Load example shows a complete sample.
- Select Calculate, then review the result, formula and counting assumptions.
- Copy the result or download its CSV. Changing an input clears the previous result.
What this tool does
Converts through a common base unit using fixed conversion factors. Temperature uses offset formulas and rejects values below absolute zero. US liquid gallons and avoirdupois pounds are explicitly named; incompatible dimensions are rejected. No live exchange rates or contextual density conversion.
Supported files, limits & important details
Inputs and results use floating-point arithmetic. Decimal values are approximate; no currency, density or historical unit conversions. Browser-local processing; no inputs are uploaded or saved. Numeric inputs are limited to an absolute value of 1 trillion. Results are estimates using JavaScript floating-point arithmetic, not certified financial or engineering calculations.
Input limits are enforced before processing. Clear removes your input and result from this page. This tool does not store your input between visits.
Keep your workflow moving
Questions about Unit Converter
How do I use Unit Converter?
Enter your values and select the applicable mode or units; Load example shows a complete sample. Select Calculate, then review the result, formula and counting assumptions. Copy the result or download its CSV. Changing an input clears the previous result.
Are files or text uploaded when I use Unit Converter?
No. Unit Converter processes your input in your browser. The tool does not upload your document or text for processing. Keep your original and review the result.
What should I check before relying on Unit Converter?
Converts through a common base unit using fixed conversion factors. Temperature uses offset formulas and rejects values below absolute zero. US liquid gallons and avoirdupois pounds are explicitly named; incompatible dimensions are rejected. No live exchange rates or contextual density conversion.
Need help choosing a workflow? Read our practical PDF and file guides. How your data is handled.
