Convert That!

Convert faster. Stay offline.

Convert That! is a polished, offline-first universal converter for everyday
units, cooking, vehicles, science, computing and more. It is built to be quick
enough for everyday use, precise enough for technical work, and simple enough
to use with one hand.

No account. No clutter. Your history, favourites and custom data stay on your
device.

A converter built for speed
- Live results as you type
- Smart source and destination pickers with search
- Related outputs so you can see more than one answer at once
- Quick swap, copy and share actions
- Conversion history and favourites for the values you use often

More than simple units
- Everyday conversions like length, weight, volume, temperature and speed
- Cooking conversions, including ingredient-aware cups-to-grams support
- Vehicle and fuel conversions
- Science and engineering units
- Computing units, data sizes and number bases
- Natural-language input like everyday conversion phrases and mixed units

Useful built-in tools
- Percentage, discount and tip calculators
- Date and age helpers
- Fuel cost and pace tools
- Download-time and portion-scaling calculators
- BMI, flooring, paint, concrete and weight-plate tools

Private and offline-first
- Works fully offline for standard unit conversions and tools
- No sign-in or account required
- No analytics or tracking
- Your saved history, favourites and custom conversions remain on your device

Convert That! Pro
Unlock live currency conversion, ingredient cooking conversions, custom
conversions, unlimited history and favourites, trades calculators, advanced
themes and app icons, and an ad-free experience with a single one-time
purchase. No subscription.