Circles
Pick your radii, then work out the circumference and area!
Find the...
Which radii?
How many questions?
Time per question?
Uses π ≈ 3.14, answers rounded to the nearest whole number.
Pick at least one thing to find and one radius.
Find the CIRCUMFERENCE
Game over!
0 / 0
Runs entirely in your browser — no data is sent anywhere.
About this circles game
This free circles game gives kids practice calculating circumference and area from a given radius — two of the most common circle formulas in school maths. Set your own range of radii, choose how many questions and how much time per question, then work through the calculations. It's a straightforward way to drill the formulas until they're second nature.