Free, online percentage calculators
What Can You Calculate?
- Dining out? Calculate the tip and total for your meal. — Calculate My Tip
- Have a discount code? Calculate the final price at checkout. — Apply My Discount
- Shopping for deals? See exactly how much money you save. — See My Savings
- Closing a deal? Calculate your commission earnings. — See My Commission
- Bills or rent went up? Calculate the percentage increase. — See % Change
- Got a salary increase? Calculate your new pay amount. — See My New Pay
- Buying for business? Remove tax to see the net price. — Remove Tax
- Taking a test? Calculate the minimum score to pass. — Calculate My Score
- Price without tax? Add VAT/GST to see the total. — Calculate Final Price
Tip
Dining out? Calculate the tip and total for your meal.
Discount
Have a discount code? Calculate the final price at checkout.
Sale
Shopping for deals? See exactly how much money you save.
Commission
Closing a deal? Calculate your commission earnings.
Costs
Bills or rent went up? Calculate the percentage increase.
Salary
Got a salary increase? Calculate your new pay amount.
Tax
Buying for business? Remove tax to see the net price.
Exam
Taking a test? Calculate the minimum score to pass.
Tax
Price without tax? Add VAT/GST to see the total.
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Table of Contents
What is the percentage change from the Original value to the New value?
From Original to New = Change%
What was the Original value before an Increase % resulted in the New value?
Original increased by Increase% is New
What was the Original value before a Decrease % resulted in the New value?
Original decreased by Decrease% is New
* The purple field represents the answer you are looking for. * Purple field = your answer.
Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
Calculate the percentage value of a given number.
Practical Uses
- Daily Nutritional Value: 40% [X] of a standard 2,000 [Y] calorie diet is how many calories [Z]? 800 calories
- Grade Points: Scoring 85% [X] on a 120 [Y] point exam earns how many points [Z]? 102 points
- Investment Interest: 5% [X] APR on a $1,000 [Y] high-yield savings account earns how much [Z]? $50
- Restaurant Tip: A 15% [X] tip on a $60 [Y] restaurant bill comes to how much [Z]? $9
- Sale Discount: 20% [X] off a $80 [Y] pair of jeans saves you how much [Z]? $16
- Tax Calculation: 8% [X] tax on a $250 [Y] pair of wireless earbuds comes to how much [Z]? $20
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Entering 0 here causes a division by zero error.
Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
The Original Value calculator (also known as reverse percentage calculator) helps you find the original value when you know a percentage and its result. This is useful for working backward from a known percentage to find the original amount.
Practical Uses
- Pre-Discount Price: 25% [X] of what original price [Y] is a $50 [Z] discount on a smartwatch? $200
- Pre-Tax Amount: 8% [X] of what pre-tax amount [Y] is $16 [Z] tax? $200
- Original Value: 15% [X] of what dinner bill [Y] is a 30 [Z] tip? 200
- Pre-Increase Salary: 10% [X] of what original base salary [Y] is a $5,000 [Z] salary increase? $50,000
- Investment Principal: 12% [X] of what original seed capital [Y] is a $2,400 [Z] return? $20,000
- Total Budget: 30% [X] of what total Christmas budget [Y] is $600 [Z]? $2,000
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Entering 0 here causes a division by zero error.
Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
Find what percentage one number is of another.
Practical Uses
- Goal Conversion Rate: What is the conversion rate [X%] for a football (soccer) player with 100 [Y] shots and 30 [Z] goals? 30%
- Rent Share: What percentage [X%] of your $4,000 [Y] monthly income goes to $800 [Z] rent in a city? 20%
- Market Share: What is an electric car maker's market share [X%] if total EV sales are $1,000,000 [Y] and the company sells $250,000 [Z]? 25%
- Savings Progress: What percentage [X%] of your $10,000 [Y] emergency fund have you reached with $7,500 [Z] saved? 75%
- Task Completion: What percentage [X%] of 24 [Y] weekly chores is 18 [Z] completed tasks? 75%
- Test Score: What is your grade [X%] on a 100 [Y] point licensing exam section when scoring 85 [Z] points? 85%
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What is the percentage change from the Original value to the New value?
Entering 0 here causes a division by zero error.
Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
Calculate the percentage difference between two values to determine increases or decreases.
Practical Uses
- Inflation Rate: A concert ticket rising from $100 [Original] to $103 [New] represents what inflation rate [Change%]? 3%
- Performance Improvement: Monthly sales leads improving from 70 [Original] to 84 [New] represents what percentage improvement [Change%]? 20%
- Revenue Growth: Small business revenue growing from $1,000,000 [Original] to $1,200,000 [New] represents what percentage growth [Change%]? 20%
- Salary Change: A local retailer manager's salary increase from $50,000 [Original] to $54,000 [New] represents what percentage salary increase [Change%]? 8%
- Stock Price Change: a streaming company stock going from $50 [Original] to $75 [New] represents what percentage change [Change%]? 50% increase
- Website Traffic Change: A drop in online shop visits from 10,000 [Original] to 8,500 [New] represents what percentage change [Change%]? 15% decrease
- Weight Loss: Weight dropping from 80 [Original] kg to 72 [New] kg on a new diet plan represents what percentage change [Change%]? 10% decrease
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Min
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Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
See what you get after boosting a value by the Increase %.
Practical Uses
- Budget Boost: A $5,000 [Original] family trip budget increased by 25% [Increase] becomes what [New]? $6,250
- Investment Growth: A $2,000 [Original] retirement account growing by 12% [Increase] becomes what [New]? $2,240
- Population Growth: A city of 100,000 [Original] people with 3% [Increase] growth reaches what population [New]? 103,000
- Price Inflation: A $120 [Original] grocery bill with 5% [Increase] inflation becomes what [New]? $126
- Rent Increase: Monthly rent of $1,200 [Original] in a city with a 7% [Increase] increase becomes what [New]? $1,284
- Salary Increase: A $50,000 [Original] salary increased by 8% [Increase] becomes what [New]? $54,000
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Sum
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Avg
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Min
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Max
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What was the Original value before an Increase % resulted in the New value?
Cannot calculate when increase is -100% (division by zero)
Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
Calculate the original value before a percentage increase, given the new value and percentage increase.
Practical Uses
- Budget (Pre-Increase): What was the original wedding budget [Original] before a 25% [Increase] increase made it $6,250 [New]? $5,000
- Investment (Pre-Growth): What was the original Bitcoin investment [Original] before a 12% [Increase] growth made it worth $2,240 [New]? $2,000
- Price Before Increase: What was the original internet bill [Original] before a 5% [Increase] increase made it $126 [New]? $120
- Rent Before Increase: What was the original rent [Original] in a city before a 7% [Increase] increase made it $1,284 [New]? $1,200
- Pre-Growth Population: What was the original population of a city [Original] before a 3% [Increase] growth brought it to 103,000 [New] people? 100,000
- Salary Before Increase: What was the original start-up salary [Original] before an 8% [Increase] salary increase made it $54,000 [New]? $50,000
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Decrease percentage must be between 0% and 100%.
Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
Calculate the new value after decreasing an original amount by a specific percentage.
Practical Uses
- Budget Cut: A $10,000 [Original] party budget cut by 25% [Decrease] becomes what [New]? $7,500
- Employee Reduction: A 500 [Original]-person tech startup reduced by 10% [Decrease] leaves how many people [New]? 450 people
- Energy Savings: A $200 [Original] electricity bill reduced by 18% [Decrease] becomes what [New]? $164
- Sale Discount: A $300 [Original] outdoor jacket with a 30% [Decrease] discount costs what [New]? $210
- Stock Price Drop: A $45 [Original] car company stock declining by 12% [Decrease] becomes what [New]? $39.60
- Weight Loss: Weighing 80 [Original] kg and losing 15% [Decrease] for summer leaves what weight [New]? 68 kg
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What was the Original value before a Decrease % resulted in the New value?
Cannot calculate when decrease is 100% (division by zero)
Decrease percentage must be lower than 100%
Maximum of 20 saved calculations reached. Remove existing ones to save new ones.
Contextual hints will appear here as you calculate
Tab - Move to next field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Shift + Tab - Move to the previous field
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Hold & Drag ← → - Adjust value
Escape - Clear all fields and start fresh
Cmd/Ctrl + C - Copy result to clipboard
Enter - Save to memos & copy result
Escape - Clear all fields and start fresh
Drag → - Increase value
Drag ← - Decrease value
Alt + Drag - Faster adjustments
Shift + Drag - Adjust by whole numbers
Calculate the original value before a percentage decrease, given the new value and percentage decrease.
Practical Uses
- Budget (Pre-Cut): What was the original renovation budget [Original] before a 25% [Decrease] cut made it $3,750 [New]? $5,000
- Investment (Pre-Loss): What was the original stock portfolio [Original] before a 12% [Decrease] loss made it worth $1,760 [New]? $2,000
- Expense Before Cut: What were the original subscription costs [Original] before a 7% [Decrease] cut made them $930 [New]? $1,000
- Salary Before Cut: What was the original freelance income [Original] before an 8% [Decrease] drop made it $46,000 [New]? $50,000
- Pre-Decline Population: What was the original population of a city [Original] before a 3% [Decrease] decline left it at 97,000 [New] people? 100,000
- Price Before Discount: What was the original price [Original] before a 5% [Decrease] local retailer discount made it $95 [New]? $100
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