Sum of Two Lengths

The Sum of two Lengths" calculator computes the sum of two lengths.

INSTRUCTIONS: Choose units and enter the following:

• (x) Length 1
• (y) Length 2

Sum of Two Lengths(L): The calculator returns the length In meters. However, this can be automatically converted to other length  units via the pull-down menu.

The Math/Science

When is 2 + 3 not equal to 5?   When they are of different units.

Units are important.  You can add 2 inches plus 3 centimeter, but it is NOT equal to 5 of anything.  You must first put them in the same units.  This calculator manages the units for you. 

1. 2 cm = 0.787 in
2. 0.787 inches plus 3 inches equals 3.787 inches or 9.62 centimeters

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