Unit & Currency Converter
Convert length, weight, temperature, and currency instantly — all locally in your browser.
Exporting the full conversion table is a Pro feature.
Export whole conversion tables
One-time payment. Download conversions across every unit as CSV, forever.
Convert anything, instantly
Four categories
Length, weight, temperature, and currency — with the units you actually use.
Accurate math
Precise conversion factors and correct temperature formulas, updated live as you type.
Private & fast
No servers, no tracking — conversions happen entirely in your browser.
Frequently asked questions
Is the converter free?
Yes. Converting between units is free forever. Pro adds full-table CSV export.
Are currency rates live?
The bundled rates are an approximate snapshot. You can connect a rates API for live values.
Which units are supported?
Common metric and imperial units for length and weight, Celsius/Fahrenheit/Kelvin, and major currencies.
Do you store my data?
No. Everything runs locally in your browser.