INCHESTO CM
Convert inches to centimetres. Great for TV sizes, monitor screens, and clothing measurements.
Convert
Quick Reference
Inches to CM
| Inches | CM | Note |
|---|---|---|
| 1" | 2.54 cm | |
| 2" | 5.08 cm | |
| 3" | 7.62 cm | |
| 4" | 10.16 cm | |
| 5" | 12.7 cm | |
| 6" | 15.24 cm | |
| 12" | 30.48 cm | 1 foot |
| 24" | 60.96 cm | |
| 36" | 91.44 cm | 3 feet |
| 48" | 121.92 cm | |
| 55" | 139.7 cm | 55" TV |
| 65" | 165.1 cm | 65" TV |
When do you need inches to cm?
TV screens, computer monitors, tablet displays, and phone screens are all measured in inches diagonally — even in the UK. Clothing measurements for waist, chest, and inseam are often in inches on American brands. Bike frame sizes in some brands still use inches. This converter is your go-to for any screen or product sized in inches.
How to convert inches to centimetres
Multiply inches by 2.54. One inch is exactly 2.54 cm.
Multiply by 2.54
For example, 55 inches × 2.54 = 139.7 cm.
For TV sizes
Remember the measurement is diagonal. A 55-inch TV measures 139.7 cm diagonally, but its width will be around 122 cm depending on aspect ratio.
Conversion formula
The inch has been defined as exactly 2.54 cm since 1959. This is an exact relationship, not an approximation.
Tips & Best Practices
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TV screens are measured diagonally — a 55" TV is 139.7cm diagonal, approx 122cm wide
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UK trouser inseam is in inches: 30" = 76.2cm, 32" = 81.3cm
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Bike wheel sizes in inches: 26" = 66cm, 27.5" = 69.9cm, 29" = 73.7cm
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A ruler is typically 12 inches (30.48 cm) or 30 cm — keep that in mind for estimation
Frequently Asked Questions
Mandeep Singh · 25+ Years UK Financial Services
Important Information
This calculator is for informational purposes only and does not constitute financial advice or a personal recommendation.
Results are estimates based on the information you provide and may not reflect your actual financial position.
You should consider seeking independent professional advice tailored to your specific circumstances before making any financial decision.