Calculadora de Pés e Polegadas
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
cm = (ft × 12 + in) × 2,54
About this calculator
The Feet and Inches Calculator allows you to add and convert measurements from the imperial system (feet and inches) to centimeters. Simply enter values in feet and inches, and the tool automatically performs the conversion using the formula: centimeters = (feet × 12 + inches) × 2.54. The result is displayed in centimeters with two decimal places.
This calculator is useful for everyday situations such as converting people's height (common in countries like the US and UK), dimensions of imported furniture, or technical specifications of products that use the imperial system. It can also be used in construction, woodworking, or design projects involving mixed measurements.
To use the tool, fill in the feet and inches fields (accepts decimal numbers) and click 'Calculate'. The result will be shown instantly. It is important to remember that 1 foot equals 12 inches, and 1 inch equals 2.54 centimeters. Ensure that the entered values are positive, as negative measurements have no physical meaning.
Frequently asked questions
How do I manually convert feet and inches to centimeters?
Multiply the number of feet by 12 to convert to inches, add the extra inches, then multiply the total by 2.54.
Can I use decimal numbers in the feet or inches fields?
Yes, the calculator accepts decimal numbers, such as 5.5 feet or 2.75 inches.
What is the difference between a foot and an inch?
One foot equals 12 inches. The inch is a smaller unit used for more precise measurements.
Does this calculator work for people's height?
Yes, it is ideal for converting height, such as 5 feet 10 inches to centimeters.
Is the result exact?
Yes, the calculation follows the standard definition of 1 inch = 2.54 cm, with the result rounded to two decimal places.