15 Inches to Centimetres
15 inches is exactly 38.1 cm.
15 inches = 38.1 cm
Type in either box. Inches also take fractions and feet: 1 1/2, 3/4, 5'7", 5 ft 7 in.
How to convert 15 inches to cm
Multiply by 2.54, the exact number of centimetres in an inch:
15 in × 2.54 = 38.1 cm
No rounding is involved — the inch is defined as 2.54 cm, so 38.1 cm is the exact answer, not an approximation. In millimetres that is 381 mm, and in metres 0.381 m.
15-inch laptop screen size in cm
Screens are measured across the diagonal, so a 15-inch laptop has a 38.1 cm diagonal — the width and height depend on the aspect ratio. Laptops ship in both 16:9 and the taller 16:10, so both are shown. These are the visible panel; the bezel and stand add to the overall size.
| Aspect ratio | Width × height (in) | Width × height (cm) |
|---|---|---|
| 16:9 | 13.1 × 7.4 in | 33.2 × 18.7 cm |
| 16:10 | 12.7 × 7.9 in | 32.3 × 20.2 cm |
15 inches in other units
| Centimetres | 38.1 cm |
| Millimetres | 381 mm |
| Metres | 0.381 m |
| Feet and inches | 1 ft 3 in |
| Feet | 1.25 ft |
Inches to cm near 15
| Inches | Centimetres |
|---|---|
| 8 in | 20.32 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 14 in | 35.56 cm |
| 15 in | 38.1 cm |
| 16 in | 40.64 cm |
| 17 in | 43.18 cm |
| 18 in | 45.72 cm |
| 20 in | 50.8 cm |
Need a different value? Type it into the converter above, or go back to the full cm to inches converter.
Frequently asked questions
How many centimetres is 15 inches?
15 inches is exactly 38.1 centimetres. One inch is defined as 2.54 cm, so multiply 15 by 2.54.
How do I estimate 15 inches in cm without a calculator?
Multiply by 2.5, then add a little: 15 × 2.5 = 37.5, and the exact answer of 38.1 cm is 1.6% higher. For most everyday purposes, 2.5 is close enough.