Math practice · reimagined
Units
Turn Units into a fight you actually want to win. Every problem is an attack — solve it faster than your opponent and you land the hit.
Ages 7–70 · no download · plays in your browser · 20 languages
How it works
Units
Pick a fighter, choose Units, and trust your numbers. The faster and cleaner you solve, the harder you hit — from gentle early grades all the way to Olympic-level challenges.
Converting means saying the same amount in a different unit — like trading coins for the same value in smaller coins.
There are 60 minutes in an hour and 60 seconds in a minute. So 2 hours = 2 × 60 = 120 minutes. Going to a smaller unit, you multiply; going to a bigger one, you divide.
Type the converted amount.
More math to master
— Quick answers —
Units: the short FAQ
- Is the Units free to play?
- Yes. The Units is free to start right in your browser — no download, no signup. Paid plans later unlock the full fighter roster and the deeper curriculum.
- Who is the Units for?
- Anyone from 7 to 70. The early grades stay gentle for beginners, while the higher tiers will make even the confident sweat.
- Do I need to download anything to play the Units?
- Nope. The Units runs in any browser, and there's a mobile app on the same account if you'd rather train on your phone.
- Can the Units be used in the classroom?
- Absolutely. Teachers run the Units with a whole class and track who's improving — see the schools plan for per-student pricing and a teacher dashboard.