UnitStack

UnitStack lets you stack multiple unit conversions at once—so you never have to switch units or reselect conversions again.

Your conversions are always saved. Open the app and start typing.

Add custom units too—like that old reliable sauce spoon.

Built for speed and clarity

• Stack multiple conversions at once
• Persistent values — pick up where you left off
• Minimal, distraction-free interface
• Custom color themes, including your own
• Support for custom units of measure

Whether you’re comparing measurements, converting currencies, or working across systems, UnitStack keeps everything visible and friction-free.

Currency exchange rates are provided by Frankfurter (ECB reference rates). Show More