Calcolatore della Circonferenza Gratuito
Calcola la circonferenza (perimetro) di un cerchio dato il raggio o il diametro. Formula C = 2πr.
Circonferenza
43.9823
Area153.9380
Diametro14.0000
Formula
How to Calculate the Circumference of a Circle
Formula
C = 2 × π × r
Or equivalently: C = π × d (where d is the diameter)
Where:
Esempio Risolto
Find the circumference of a circle with radius 7.
- 01C = 2 × π × 7
- 02= 14π
- 03= 14 × 3.14159
- 04≈ 43.9823
Domande Frequenti
What is circumference?
Circumference is the distance around the edge of a circle — essentially the perimeter of a circle.
What is the relationship between circumference and diameter?
The circumference divided by the diameter always equals π (pi). This is actually the definition of pi: C/d = π.
Impara