Decimal
0.25 × 20 = 5
Fraction
¼ of 20 = 5
Equation
(25 ÷ 100) × 20 = 5
How to calculate 25% of 20
Two steps — convert to a decimal, then multiply.
- 1
Convert the percentage to a decimal
25 ÷ 100 = 0.25
- 2
Multiply the original number by the decimal
0.25 × 20 = 5
Where 25% of 20 comes up in practice
A 25% tip on a $20 restaurant bill comes out to $5.00, bringing the total to $25.00. In another common context, a 25%-off coupon on a $20 item saves you $5.00 (final price $15.00).
How to read this number
- 25% is a generous tip — typical when service was excellent or when rounding up a small bill.
- A 25% discount on $20.00 is a typical seasonal sale — saves $5.00, dropping the price to $15.00.
Mental math shortcut
¼ — divide by 4.
The same calculation, expressed three ways
Knowing one of these gives you the other two — handy when a problem is phrased differently to what you typed.
- 5 is 25% of 20
- 5 out of 20 = 25%
- 25% off $20.00 = $15.00
Frequently asked
Common follow-up questions for 25% of 20.
Yes — multiplying by the decimal form (0.25) is exactly what "25% of 20" means. 20 × 0.25 = 5.
25% equals ¼. So ¼ of 20 = 5, which is the same answer reached the long way.
No — 25% of $20 is the discount amount itself ($5.00). 25% off $20 means the sale price is $15.00 (the original price minus the discount).
¼ — divide by 4. For 25% of 20 that gives 5 directly.
The number is 20. To work it out, divide 5 by 0.25: 5 ÷ 0.25 = 20.
Total = $25.00. The bill ($20) plus a 25% tip ($5.00) = $25.00.
Need a different calculation?
Use the full Percentage Calculator — five modes including reverse calculations, percentage change, and percentage difference.
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