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Tools / Percentages & money

Percentages & money

Work out discounts, percentage changes, markup and margin, VAT, fractions as percentages, and tips—each calculator shows the formula it uses.

Math

Percentage calculator

What is X% of Y, and X is what percent of Y.

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Money

Discount calculator

Sale price and savings from an original price and percent off.

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Math

Percentage change

Percent increase or decrease between an old and a new value.

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Math

Percentage increase

Increase a number by a percentage—raises, rent, and prices.

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Money

Markup calculator

Selling price, profit, and margin from cost and markup percent.

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Money

VAT calculator

Add VAT to a net price or extract VAT from a gross amount.

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Math

Fraction to percent

Turn any fraction into a percentage and decimal, e.g. 43/50.

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Money

Tip calculator

Split a bill, add a tip, and see per-person totals instantly.

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Other categories

  • Text & data — 8 tools
  • Encoding & web — 3 tools
  • Security & crypto — 4 tools
  • Developer — 8 tools
  • Media & design — 7 tools
  • Numbers & time — 7 tools
  • Everyday — 4 tools

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All tools run in your browser. We do not upload your input to a server unless a tool explicitly says otherwise.

Text & data

  • Word counter
  • Case converter
  • Text tools
  • Lorem ipsum
  • Text diff
  • CSV viewer
  • Regex tester
  • Slug generator

Encoding & web

  • Base64
  • URL encoder
  • HTML entities

Security & crypto

  • Password generator
  • SHA-256 hash
  • Password strength
  • JWT decoder

Developer

  • JSON formatter
  • SQL query builder
  • cURL to fetch
  • User-Agent parser
  • JSON to CSV
  • robots.txt generator
  • Schema validator
  • Cron parser

Media & design

  • Color converter
  • QR code
  • Image resize
  • HEIC to JPG
  • Subtitle shifter
  • OG image generator
  • Image format converter

Numbers & time

  • Unix timestamp
  • UUID generator
  • Unit converter
  • World clock
  • Countdown
  • Date difference
  • Age calculator

Percentages & money

  • Percentage calculator
  • Discount calculator
  • Percentage change
  • Percentage increase
  • Markup calculator
  • VAT calculator
  • Fraction to percent
  • Tip calculator

Everyday

  • EV charging cost
  • Random picker
  • PDF merge
  • PDF split

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