Calculate Everything.
4800+ Free Calculators and Converters!
Free calculators and unit conversions for every topic in life.
What you get here
SuperGlobalCalculator is a free collection of calculators and unit converters, from the most-searched tools on the internet to the most niche.
Every calculator runs entirely in your browser, so nothing you type is ever sent to a server.
The tools are hand-built and tested against worked examples, with the source named on the page whenever a calculator uses a published formula.
Pick a popular tool below, browse by category, or search for whatever you need to work out.
Popular Calculators
Percentage Calculator
Calculate percentages, increases, and decreases
BMI Calculator
Calculate your Body Mass Index
Tip Calculator
Split the bill and calculate tips easily
Loan Calculator
Calculate monthly payments and total interest
Discount Calculator
Calculate sale prices and savings
Age Calculator
Calculate exact age and birthday countdown
Average Calculator
Calculate mean, median, mode, and range
Area Calculator
Rectangle, circle, triangle, trapezoid
Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin
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129 calculator categories, sorted by size, with the newest content highlighted.
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12 calculators
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11 calculators
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10 calculators
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10 calculators
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10 calculators
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10 calculators
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10 calculators
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10 calculators
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10 calculators
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10 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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9 calculators
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8 calculators
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8 calculators
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7 calculators
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3 calculators
Unit Conversions
311 converters