18% of 100 = 18
18
18% of 100 is 18.
The working
100 × 0.18 = 18
Off and on
After the discount82
With it added118
A 18% discount takes off 18, leaving 82. Adding 18% as tax or tip brings it to 118.
The other way round
18 / 10018%
The whole100
18 is 18% of 100. And if 18 is the 18%, the whole was 100.
Other percentages of 100
18% of other numbers
10 → 1.820 → 3.625 → 4.530 → 5.440 → 7.250 → 960 → 10.870 → 12.675 → 13.580 → 14.490 → 16.2100 → 18120 → 21.6125 → 22.5150 → 27200 → 36250 → 45300 → 54350 → 63400 → 72500 → 90600 → 108700 → 126750 → 135800 → 144900 → 1621,000 → 1801,200 → 2161,500 → 2702,000 → 3602,500 → 4503,000 → 5405,000 → 9007,500 → 1,35010,000 → 1,80015,000 → 2,70020,000 → 3,60025,000 → 4,50050,000 → 9,000100,000 → 18,000
How to read it
- Percent means hundredths. 15% is 0.15, so multiplying the base by 0.15 gives the answer.
- A discount subtracts, tax or tip adds. For the same 15%, the gap between the two results is twice the value.
- "What percent" is a division: 15 ÷ 200 × 100. When it does not come out even, the figure shown is rounded.
Common questions
Q. What is 18% of 100?
18. That is 100 × 0.18.
Q. What is 100 minus 18%?
82 — you take off 18.
Q. What is 100 plus 18%?
118, the figure with tax or a tip on top.
Q. If 18 is 18%, what is the whole?
100.