Inch diameter to centimeter diameter
Type a value in in to get it in cm instantly.
45.72cm
That's about the same as an 18-inch extra large. That is about 18 slices the size of a 12-inch pizza’s eighths.
Convert the other way: cm to in
What it means
How much pizza is that?
Area of a flat circle, crust included. Thicker or deep-dish pizzas hold more per square inch.
The math
How to convert in to cm
area = π × (diameter ÷ 2)²; a 16″ pizza is 3.1416 × 8² = 201 in².
Example: 18 in = 45.72 cm.
Every unit
That pizza in every unit
Tables
in to cm conversion table
| in | cm |
|---|---|
| 6 in | 15.24 cm |
| 8 in | 20.32 cm |
| 9 in | 22.86 cm |
| 10 in | 25.4 cm |
| 11 in | 27.94 cm |
| 12 in | 30.48 cm |
| 13 in | 33.02 cm |
| 14 in | 35.56 cm |
| 15 in | 38.1 cm |
| 16 in | 40.64 cm |
| 18 in | 45.72 cm |
| 20 in | 50.8 cm |
| 24 in | 60.96 cm |
| 28 in | 71.12 cm |
cm to in conversion table
| cm | in |
|---|---|
| 15.2 cm | 5.98425 in |
| 20.3 cm | 7.99213 in |
| 22.9 cm | 9.01575 in |
| 25.4 cm | 10 in |
| 27.9 cm | 10.9843 in |
| 30.5 cm | 12.0079 in |
| 33 cm | 12.9921 in |
| 35.6 cm | 14.0157 in |
| 38.1 cm | 15 in |
| 40.6 cm | 15.9843 in |
| 45.7 cm | 17.9921 in |
| 50.8 cm | 20 in |
| 61 cm | 24.0157 in |
| 71.1 cm | 27.9921 in |
Quick answers
Quick answers
- How many cm is 1 in?
- 1 in is 2.54 cm.
- How many cm is 10 in?
- 10 in is 25.4 cm.
- How many cm is 18 in?
- 18 in is 45.72 cm.
The units
About these units
Inch diameter (in)
Diameter in inches.
Centimeter diameter (cm)
Diameter in centimeters.
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