Median Formula Explained, With Examples
Every median result comes from one formula. Once you understand what goes into it, you can sanity-check any figure you are given, whether by an employer, a bank, a teacher or another website.
The formula
Sort the values; take the middle one (or the average of the two middle values).
What each input means
- Numbers (separated by commas): the value you enter in the calculator.
Example
For example, with these inputs:
- Numbers (separated by commas): 12, 15, 9, 22, 15, 30
the calculator returns:
- Median: 15
Why it matters
These calculations come up in school, at work and in daily life, from PSLE and O-Level practice to measuring a room for new flooring. Doing them by hand builds understanding, and a calculator lets you check the answer instantly.
These calculations appear throughout the Singapore syllabus, from primary school percentages and fractions to secondary school algebra and geometry. Understanding the formula makes problem sums easier because you can recognise which quantity is missing.
A quick mental estimate before calculating is a powerful check. If a room's floor area comes out at 4,000 square metres or a percentage comes out above 100% when it should not, you know to look again.
In everyday life the same maths shows up in discounts, recipe scaling, renovation measurements and comparing prices per unit. Being comfortable with it saves money and avoids costly measuring mistakes.
Related calculations
- Volume of a Hemisphere Calculator: Calculates the volume of a hemisphere from the measurements you enter.
- Surface Area of a Cube Calculator: Calculates the surface area of a cube from the measurements you enter.
- Surface Area of a Cuboid Calculator: Calculates the surface area of a cuboid from the measurements you enter.
- Surface Area of a Sphere Calculator: Calculates the surface area of a sphere from the measurements you enter.
Use the Median Calculator to plug in your own numbers.
Run your own numbers: Median Calculator