Free Online Calculators

From BMI to loans, tips to age — instant calculations at your fingertips.

503 Calculators 18 Categories 100% Free

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BMI Prime Calculator

#1

Calculates BMI Prime by comparing BMI to the upper limit of the normal BMI range (25).

Health & Fitness 5 variants

3D Distance from Origin Calculator

Calculates the distance of a point from the origin (0,0,0) in three-dimensional space using the 3D distance formula.

Math Calculators 4 variants

Continuous Compounding Future Value Calculator

Calculates the future value of an investment using continuous compounding.

Financial Calculators 4 variants

Sharpe Ratio Calculator

Calculates the Sharpe Ratio to measure risk-adjusted investment return.

Financial Calculators 4 variants

EV Energy Efficiency Calculator

Calculates an electric vehicle's energy efficiency in miles per kilowatt-hour (mi/kWh).

Travel & Geography 5 variants

Value Given Percent Calculator

Calculate the value given a percentage of a total.

Math Calculators 5 variants
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Calculators

503 total
Elastic Potential Energy Calculator Calculates the elastic potential energy stored in a stretched or compressed spri...
Science & Engineering
EN
Coffee to Water Ratio Calculator Calculate the required amount of water based on coffee grounds and desired brew...
Cooking & Nutrition
EN
Shock Index Calculator Estimates hemodynamic stability using heart rate and systolic blood pressure.
Health & Fitness
EN
Batting Average Calculator Calculate a baseball or softball player's batting average.
Sports & Performance
EN
Total Interest Paid Calculator Calculates the total interest paid over the full term of a loan based on loan am...
Financial Calculators
EN
Aspect Ratio Calculator Calculates the numeric aspect ratio of a rectangle by dividing width by height.
Math Calculators
EN
Monthly Savings Allocation Calculator (50/30/20 Rule) Calculate how much money to set aside for savings each month based on a chosen s...
Financial Calculators
EN
Arterial Oxygen Content (CaO₂) Calculator Calculates the total arterial oxygen content based on hemoglobin, oxygen saturat...
Chemistry & Biology
EN
Corrected Serum Sodium Calculator (Hyperglycemia) Estimates corrected serum sodium in patients with hyperglycemia using a standard...
Health & Fitness
EN
Gear Ratio Calculator Calculate the gear ratio between two gears based on their number of teeth.
Science & Engineering
EN
Pregnancy Weight Gain Calculator Estimates a woman's target weight during pregnancy based on pre-pregnancy weight...
Health & Fitness
EN
Real Wage Increase Calculator Calculates your real wage increase after accounting for inflation to show the tr...
Financial Calculators
EN