Converter Web ToolsConverter WebTools

What is 50% of 30? = 15

50 percent of 30 is 15. See the step-by-step solution, formula and worked example for how to calculate 50% of 30.

50% of 30 = 15
What is % of

Solution: What is 50 percent of 30?

50% × 30 =
(50 ÷ 100) × 30 =
(50 × 30) ÷ 100 =
1500 ÷ 100 = 15

Step-by-step explanation

  1. "Percent" means "per hundred", so 50% = 50 ÷ 100 = 0.5.
  2. "Of" means multiply, so we calculate 0.5 × 30.
  3. 0.5 × 30 = 15.
  4. So 50 percent of 30 is 15.

Good to know

Another way to check this: 1% of 30 is 0.3, and 50% is just 50 of those, so 50 × 0.3 = 15. Because 50% is a common fraction, you can also do it in your head. Percentages like this come up everywhere — working out a 50% deposit, tip, tax or commission on 30, for example.

Quick reference: percentages of 30

1% of 300.3
5% of 301.5
10% of 303
15% of 304.5
20% of 306
25% of 307.5
50% of 3015
75% of 3022.5
100% of 3030

Frequently asked questions

What is 50 percent of 30?
50% of 30 is 15.

How do you calculate 50% of 30?
Divide 50 by 100 to get 0.5, then multiply by 30 to get 15.

What is 30 minus 50%?
30 − 15 = 15 (see 50% off 30).

Calculated instantly in your browser. Try your own numbers in the box above, or use the full Percentage Calculator.