Mathematics
Midpoint of Two Numbers
Find the value halfway between two numbers.
Let’s calculate.
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THE IDEA, SIMPLY
How it works
Find the value halfway between two numbers.
FORMULA
Midpoint = (a + b) / 2
A worked example
Halfway between 10 and 20 is 15.
Formula & detailed explanation
Both values may be positive, zero or negative.
Calculations use decimal arithmetic with 40 significant digits internally. Choose 0–8 decimal places for the displayed result. Trailing zeros are omitted. Rounding affects only the displayed and copied result; very small values may round to zero. Accepted inputs have up to 100 characters and magnitudes from 10⁻¹⁰⁰ to 10¹⁰⁰, plus zero.