Converting between inches and centimeters is essential for international measurements in sewing, engineering, and everyday comparisons between imperial and metric systems.
Key Conversion: 1 inch = 2.54 centimeters (exact)
Our inches to cm converter helps with:
- Precise inch to cm calculations
- Sewing and tailoring measurements
- International product specifications
- Scientific and technical conversions
Inches to Centimeters Converter
Type any value in inches to see centimeters equivalent (e.g., 1 in to cm = 2.54 cm)
Inches to Centimeters Conversion Chart
Common inch to centimeter conversions:
| Inches (in) | Centimeters (cm) | Practical Example |
|---|---|---|
| 1" | 2.54 | Quarter diameter |
| 6" | 15.24 | Standard ruler length |
| 12" | 30.48 | Standard ruler |
| 24" | 60.96 | Standard door width |
| 36" | 91.44 | Yard length |
Note: 1 centimeter = exactly 0.393701 inches (international standard)
How to Convert Inches to Centimeters Manually
Conversion Formula
1 inch = 2.54 centimeters
centimeters = inches × 2.54
This exact conversion factor was internationally agreed upon in 1959.
Step-by-Step Example
1
Start with inches value
Example: 8 inches to centimeters
2
Multiply by 2.54
8 × 2.54 = 20.32
3
Result in centimeters
8 in = 20.32 cm
Quick Estimation Method
For rough inches to centimeters conversions:
- Double the inches and add half (10 in ≈ 20 + 5 = 25 cm)
- 1 inch ≈ 2.5 cm
- 12 inches ≈ 30 cm
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