Add Numbers in Feet, Inches, & Carpenter Fractions

Calculate the sum of multiple values in feet, inches, and carpenter fractions. This calculator automatically fires so there is no need to click an “equals” button.

Finding the Sum with Carpenter Fractions

Enter a value for feet in the number box below feet within each values section. If there is no value, then do nothing.

Enter a value for inches in the number box below inches within each values section. The inches can be entered as feet such as 192″ instead of 16′ in the “Feet” box. ┬áThe sum is automatically fired!

When to Use

Sometimes blueprints are incomplete in their dimensions and require the builder to add several numbers together in feet, inches, and fractions. This tool is ideal for this scenario.


Addition is best done in columns.

Addition is best done in columns.