Percentage Calculators
Free online percentage calculators for everyday math. Choose from our collection below — all calculators provide instant results as you type.
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Percentage of a Number
Find X% of any number
Formula: (X / 100) × Y
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Percentage Change Calculator
Find % increase or decrease
Formula: ((New - Old) / |Old|) × 100
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What Percent is X of Y?
X is what % of Y?
Formula: (X / Y) × 100
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Percentage Increase/Decrease
Add or subtract a percentage
Formula: Value ± (Value × P / 100)
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Tip Calculator
Calculate tips & split bills
Formula: Tip = Bill × (Tip% / 100)
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Discount Calculator
Find sale price & savings
Formula: Sale Price = Price - (Price × Discount% / 100)