Is this converter accurate?

Conversions use exact defined factors where they exist (for example 1 inch = 2.54 cm exactly) and results are shown to 8 significant digits.

Does it work offline?

Yes. Conversion is plain arithmetic in your browser and needs no connection once the page has loaded.

JavaScript is turned off. InspireTools processes files in your browser, so the tools need JavaScript to run.

Convert length, weight, temperature, area, volume, speed, data and more in one place.