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Percentage Calculator

Percentage Calculator: Calculate X% of Any Number Instantly | HandyFreeTools

Percentage Calculator

Calculate X% of any number instantly

%
Result:
Formula: (Percentage ÷ 100) × Number = Result

Calculation History

    How to Use Our Percentage Calculator

    Our percentage calculator makes it incredibly easy to calculate any percentage of a number. Here’s how to use it:

    1. Enter the percentage you want to calculate in the first field (e.g., 15 for 15%)
    2. Enter the number you want to find the percentage of in the second field
    3. Click “Calculate” to instantly see the result
    4. Your calculation will be saved in the history section below for quick reference

    Example Calculations

    • What is 20% of 50? (Answer: 10)
    • Calculate 15% of 200 (Answer: 30)
    • Find 7.5% of 1,000 (Answer: 75)

    Why Use Our Percentage Calculator?

    Percentages are used in countless real-world situations, and our calculator provides the fastest way to get accurate results:

    Common Uses for Percentage Calculations

    • Calculating discounts: Determine sale prices (e.g., “30% off $50”)
    • Tip calculations: Figure out 15%, 18%, or 20% tips at restaurants
    • Tax calculations: Compute sales tax amounts (e.g., “8.25% tax on $120”)
    • Grade calculations: Determine test scores (e.g., “85% of 100 points”)
    • Financial calculations: Calculate interest rates, investment returns, or loan percentages
    • Statistics: Analyze data and compute percentage changes

    Benefits of Our Tool

    • Instant results – No more manual calculations
    • Visual percentage bar – See the percentage represented graphically
    • Calculation history – Reference your recent calculations
    • Works on all devices – Mobile-friendly design
    • Completely free – No registration required

    Percentage Calculation FAQ

    How do you calculate a percentage of a number?

    To calculate a percentage of a number, multiply the number by the percentage (in decimal form). The formula is: (Percentage ÷ 100) × Number = Result. For example, to find 20% of 50: (20 ÷ 100) × 50 = 10.

    What is the easiest way to calculate percentages?

    The easiest way is to use our percentage calculator above! For mental math, you can use these tricks: To find 10%, move the decimal one place left (10% of 50 is 5). For 5%, calculate 10% and halve it. For 20%, calculate 10% and double it.

    How do you add a percentage to a number?

    To add a percentage to a number, first calculate the percentage of the number, then add it to the original. For example, to add 15% to 100: (15% of 100 = 15) → 100 + 15 = 115.

    How do you subtract a percentage from a number?

    To subtract a percentage, calculate the percentage amount and subtract it from the original. For example, to subtract 20% from 50: (20% of 50 = 10) → 50 – 10 = 40.

    What is the percentage formula?

    The basic percentage formula is: (Part ÷ Whole) × 100 = Percentage. Our calculator uses a variation of this formula to find the part when you know the percentage and whole number.

    More About Percentages

    Percentages are a fundamental concept in mathematics and everyday life. The term “percent” comes from the Latin “per centum,” meaning “by the hundred.” A percentage represents a fraction of 100, making it easy to compare different quantities.

    Percentage vs. Decimal vs. Fraction

    Percentages can be converted to decimals and fractions:

    • Percentage to decimal: Divide by 100 (25% = 0.25)
    • Decimal to percentage: Multiply by 100 (0.75 = 75%)
    • Percentage to fraction: Write over 100 and simplify (50% = 50/100 = 1/2)

    Common Percentage Conversions

    • 1% = 0.01 = 1/100
    • 5% = 0.05 = 1/20
    • 10% = 0.10 = 1/10
    • 25% = 0.25 = 1/4
    • 50% = 0.50 = 1/2
    • 75% = 0.75 = 3/4
    • 100% = 1.00 = 1/1