Travel the world, learn Celsius and Fahrenheit along the way.
A free trivia game with 550+ real destinations and 200+ global recipes. Play a few rounds before your trip — you'll be surprised how quickly it clicks.
Where will you go next?
Each question features a real place or a real dish. You might find your next trip — or your next recipe.
Festivals, landmarks & hidden gems
From fireworks over English Bay in Vancouver to jazz festivals in Istanbul — every question is a real destination with real weather.
550+ questionsYour next cooking adventure is in here
Stuffed Quahogs, Argentinian Provoleta, British Yorkshire Pudding — discover global and regional dishes while you play.
200+ recipesNo math required
You learn temperatures visually — the same way you learned your first language, through experience.
See the Temperature Bar
°C and °F sit side by side so key pairs become familiar on sight. No formulas to remember.
Estimate your answer
Use the bar to guide your guess. Toggle labels off when you're ready for more challenge.
Learn something new
Every answer comes with a real fact about the destination or dish. Insider tips included.
Play a few games before you pack
Play for 30 minutes and you'll be warmed up for the weather forecast by the time you land. Repeat for a few days and you'll have it down. And maybe even get an idea for your next vacation.
No accounts. No catch.
Dumb Units! is completely free. Here's what that actually means.
FAQ
Is any math required?
Nope. You learn visually with the Temperature Bar and through real-world context in each question. No conversions, no formulas.
How long does it take to feel confident?
Play for about 30 minutes and you'll already have a feel for the weather forecast. Repeat for a few days and it starts to stick. Kitchen temperatures take a bit longer since the range is wider.
Does it work offline?
Yes. Everything is on-device. No internet connection needed, no data sent anywhere.
Why is it free?
Because it can be. There's no server to maintain, no data to store, no reason to charge. It's a game that teaches you something useful.
What's the difference between the Weather and Kitchen games?
The Weather Game covers everyday temperatures (roughly 0–100°F) with real travel destinations. The Kitchen Game covers cooking temperatures (100–500°F) with real recipes from around the world.
Be fluent in Celsius by the time you land.
Totally free. Takes a few minutes a day. What else are you going to do while waiting at your gate?