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Explore Calculator Box by Category

Find the right tool across 18 fields of human knowledge — from everyday math to advanced science.

Mathematics Arithmetic, algebra, geometry, calculus, number theory and statistics. 171 tools Browse all
Triangular Prism Calculator Mathematics · 999.7K Exponent Multiplication Calculator Mathematics · 999.6K Natural Log Calculator Mathematics · 998.9K
Finance Loans, interest, retirement, taxes, investments and currency. 61 tools Browse all
Annual Interest Rate Calculator Finance · 998.6K Deposit Calculator Finance · 994.8K CD Calculator Finance · 994.4K
Health BMI, calorie needs, pregnancy, medication dosing and vitals. 24 tools Browse all
Calories Burned Calculator Health · 984.5K Contraception Calculator Health · 944.7K Body Fat Calculator Health · 940.0K
Physics Mechanics, thermodynamics, waves, electricity and optics. 56 tools Browse all
Parallel Capacitor Calculator Physics · 996.0K Diffusion Coefficient Calculator Physics · 984.4K Aperture Area Calculator Physics · 976.3K
Statistics Mean/median, distributions, regression, hypothesis tests. 32 tools Browse all
Negative Binomial Distribution Calculator Statistics · 999.5K Population Variance Calculator Statistics · 983.9K Binomial Distribution Calculator Statistics · 979.6K
Chemistry Moles, concentration, pH, gas laws, stoichiometry. 71 tools Browse all
Osmotic Pressure Calculator Chemistry · 999.0K Chemical Name Calculator Chemistry · 989.3K Nernst Equation Calculator Chemistry · 977.0K
Daily Life Date/time, tips, unit conversion, age, fuel. 26 tools Browse all
TV Size Calculator Daily Life · 990.0K Glass Weight Calculator Daily Life · 984.2K Pixels to Print Size Calculator Daily Life · 981.7K
Construction Materials, areas, loads, estimates for trades. 34 tools Browse all
Gallons per Square Foot Calculator Construction · 1000.0K Wall Area Calculator Construction · 996.7K Board Foot Calculator Construction · 995.8K
Food Recipes, nutrition, servings, conversions in the kitchen. 11 tools Browse all
Thanksgiving Calorie Calculator Food · 988.2K Rice to Water Ratio Calculator Food · 976.7K Cups to Pounds Calculator Food · 958.7K
Sport Pace, race times, training zones, calories burned. 10 tools Browse all
Triathlon Training Calculator Sport · 990.6K Air Force Fitness Calculator Sport · 952.5K Marathon Pace Calculator Sport · 949.2K
Biology Genetics, populations, enzyme kinetics, dosages. 33 tools Browse all
DNA GC Content Calculator Biology · 994.9K Exudation Rate Calculator Biology · 991.7K Rabbit Pregnancy Calculator Biology · 988.8K
Geography Coordinates, distances, time zones, map scale. 16 tools Browse all
Coordinate Converter Geography · 990.6K Route Distance Calculator Geography · 983.5K Map Scale Calculator Geography · 962.4K
Ecology Carbon footprint, biodiversity indices, water use. 32 tools Browse all
Global Plastic Policy Calculator Ecology · 996.8K Plant Spacing Calculator Ecology · 992.6K Plastic Reduction Calculator Ecology · 969.9K
Language Word/character count, readability, syllables. 5 tools Browse all
Word Calculator Language · 989.1K Essay Word Count Calculator Language · 942.5K Morse Code Translator Language · 900.4K
History Date conversion, eras, anniversaries, regnal years. 11 tools Browse all
Roman Numeral Date Calculator History · 988.8K Historical Age Calculator History · 925.7K Medieval Period Calculator History · 899.6K
Politics Voting systems, apportionment, polling error. 10 tools Browse all
Grassroots Governance Population Ratio Calculator Politics · 970.3K Poll Margin Calculator Politics · 956.9K Voter Turnout Calculator Politics · 933.6K
Technology Storage units, data rates, developer tools. 27 tools Browse all
IP Subnet Calculator Technology · 979.7K Image Aspect Ratio Calculator Technology · 976.5K Screen Size Calculator Technology · 975.3K
Other Everything that doesn't fit — but still useful. 2 tools Browse all
Shutter Speed Calculator Other · 869.5K Random Number Generator Other · 1.7K