Calculate the arithmetic mean of three values. Add the values and divide the sum by three; each entry has equal weight.
How this calculation works
Arithmetic mean = (value 1 + value 2 + value 3) ÷ 3.
Check that your inputs use consistent units and assumptions. Results are estimates for general information and should be checked against the rules or requirements that apply to your situation.
Results are estimates based on the inputs and assumptions shown. Check the methodology before relying on a result.