80% as a Decimal (and Fraction)
80% = 0.8
80 percent as a decimal is 0.8 — divide by 100.
Step by step
- Percent means per hundred, so divide by 100: 80 ÷ 100 = 0.8.
- Equivalently, move the decimal point two places to the left.
- As a fraction: 4/5.
Details
- Decimal
- 0.8
- Fraction
- 4/5
- 80% of 50
- 40
- 80% of 200
- 160
- 80% of $1,000
- $800
- Multiplier for a price increase
- × 1.8
How it works
A percentage is a number out of 100. To use it in a calculation, convert it to a decimal by dividing by 100 — then multiply: 25% of 80 is 0.25 × 80 = 20. To increase a number by a percentage, multiply by 1 plus the decimal; to decrease it, multiply by 1 minus the decimal.
Nearby values
Related conversions
Frequently asked questions
What is 80% as a decimal?
0.8.
What is 80% as a fraction?
4/5.
How do I calculate 80% of a number?
Multiply the number by 0.8.
How do I add 80% to a price?
Multiply the price by 1.8.