# Inches to Centimeters Converter

Convert inches to centimeters instantly. Also shows millimeters, meters, and feet. Exact formula: 1 in = 2.54 cm. Common length reference table included.

## What this calculates

Convert any length from inches to centimeters using the exact definition: 1 inch = 2.54 cm. This converter also displays millimeters, meters, and feet for full versatility.

## Inputs

- **Length in Inches** (in) — min 0 — Enter a length in inches.

## Outputs

- **Centimeters** (cm) — Length in centimeters.
- **Millimeters** (mm) — Length in millimeters.
- **Meters** (m) — Length in meters.
- **Feet** (ft) — Length in feet.

## Details

The inch is a unit of length in the imperial and US customary systems, while the centimeter is part of the metric system. The international inch is defined as exactly 2.54 centimeters. This exact relationship was established by international agreement in 1959 and makes conversion simple: simply multiply inches by 2.54.

Common Inch to Centimeter Conversions

Inches
Centimeters
Context

1 in
2.54 cm
Base conversion

6 in
15.24 cm
Half a foot

12 in
30.48 cm
One foot

24 in
60.96 cm
Two feet

36 in
91.44 cm
One yard

48 in
121.92 cm
Four feet

60 in
152.4 cm
Five feet

72 in
182.88 cm
Six feet

Common Screen Sizes (diagonal)

Inches
Centimeters
Device

5.5 in
13.97 cm
Smartphone

10.9 in
27.69 cm
Tablet

15.6 in
39.62 cm
Laptop

27 in
68.58 cm
Monitor

55 in
139.7 cm
TV

## Frequently Asked Questions

**Q: How do I convert inches to centimeters?**

A: Multiply the inch value by 2.54. This is an exact conversion since 1 inch is defined as exactly 2.54 centimeters. For example, 10 inches = 10 x 2.54 = 25.4 cm.

**Q: How many centimeters are in an inch?**

A: One inch equals exactly 2.54 centimeters. This is not an approximation but the exact international definition established in 1959.

**Q: What common items are measured in inches?**

A: Screen sizes (TVs, monitors, phones) are measured in diagonal inches. Tire rim diameters, pipe diameters, and lumber dimensions also use inches. In the US, height is commonly stated in feet and inches.

**Q: How do I convert feet and inches to centimeters?**

A: First convert everything to total inches: (feet x 12) + inches. Then multiply by 2.54. For example, 5 ft 8 in = (5 x 12) + 8 = 68 inches. 68 x 2.54 = 172.72 cm.

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Source: https://vastcalc.com/calculators/conversion/inches-to-cm
Category: Conversion
Last updated: 2026-04-21