Perimeter Calculator
Worked example result
| Perimeter | 43.9823 |
| Shape calculated | circle |
A circle with radius 7 has a circumference of 2 × π × 7 ≈ 43.98 — the distance a wheel of that size rolls in one full turn.
Square 4a · Rectangle 2(a+b) · Circle 2πr · Triangle a+b+c · Regular polygon n × side · Powered by CalcHub — Perimeter Calculator