What is 50% of 30?

50% of 30 = 15

Formula: 30 × 50 ÷ 100 = 15. Or work it out as 50 hundredths: 1% of 30 is 0.3, so 50% is 0.3 × 50 = 15.

• 30 − 50% = 15 (for example a 50% discount)
• 30 + 50% = 45 (for example adding 50% tax or a tip)
• 15 is 50% of 30

Any other numbers? Use the percentage calculator, the discount calculator or the percent change calculator.

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