Inches appear in monitor and TV sizes, suitcase sizes, jeans waist and inseam measurements, bicycle wheels and furniture specs. Converting a 27-inch monitor, a 24-inch suitcase or a size 32 waist into centimeters makes it easier to compare with the space you have or your own measurements.
Formula: cm = in × 2.54. Example: 27 in = 68.58 cm. Table values are rounded to two decimal places (one for temperatures); use the converter above for more precision.
To convert in your head, multiply by 2.5 and add a little: 12 inches ≈ 30 + 0.5 = 30.5 cm (exactly 30.48). Screen sizes are diagonal; a 27-inch 16:9 monitor is about 59.8 cm wide and 33.6 cm tall.
