wikiHow Traditional Recipes to Celebrate Kwanzaa Inches = centimeters / 2.54 To use the formula, simply divide the number of centimeters by 2.54 to get the equivalent number of inches. For example: To convert 50 centimeters to inches: 50 / 2.54 = 19.69 inches (rounded to two decimal places) To convert 30 centimeters to inches: 30 / 2.54 = 11.81 inches (rounded to two decimal places) Page