How to Convert Centimeters to Inches

4 min read•June 1, 2025•Reviewed: June 1, 2026

✓Reviewed by Apex Conversion Editorial Team · Last reviewed June 1, 2026

To convert centimeters to inches, divide by 2.54 (or multiply by 0.393701). One inch equals exactly 2.54 cm, so this division is the only step needed. To then express the result in feet-and-inches, divide the total inches by 12 — the quotient is feet, the remainder is inches.

The most common use is converting a height in centimeters (the global medical standard) into feet-and-inches (the US standard). For example: 175 cm ÷ 2.54 = 68.90 in = 5 ft 8.9 in.

Step-by-Step Instructions

Step 1: Divide by 2.54 to get total inches. Example: 168 cm ÷ 2.54 = 66.14 in. Step 2: Divide total inches by 12. The whole number is feet: 66.14 ÷ 12 = 5 remainder 6.14. Step 3: The remainder is inches: 6.14 in. Result: 5 ft 6.1 in.

Alternative: Multiply by 0.393701 instead of dividing by 2.54. Both give the same result. For a quick mental estimate, divide by 2.5 — this overestimates by 1.6% but is fast: 170 cm ÷ 2.5 = 68 in vs. exact 66.93 in. Close enough for casual comparisons.

Worked Examples

Convert 160 cm:
  160 ÷ 2.54 = 62.99 in
  62.99 ÷ 12 = 5 ft remainder 2.99 in
  Result: 5 ft 3.0 in

Convert 180 cm:
  180 ÷ 2.54 = 70.87 in
  70.87 ÷ 12 = 5 ft remainder 10.87 in
  Result: 5 ft 10.9 in

Convert 30 cm (ruler length):
  30 ÷ 2.54 = 11.81 in

Convert 100 cm (1 meter):
  100 ÷ 2.54 = 39.37 in = 3 ft 3.37 in

Quick Tips

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Divide by 2.5 for a quick estimate — 160 cm ÷ 2.5 = 64 in vs exact 62.99 in (off by 1.6%).
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Divide by 30.48 to convert centimeters directly to feet (decimal, not feet-and-inches).
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TV sizes: a 55-inch TV diagonal = 55 × 2.54 = 139.7 cm ≈ 140 cm.
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For heights: knowing that 5 cm ≈ 2 in speeds up mental conversions of similar values.
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30 cm ≈ 11.8 in — the standard school ruler in metric countries.