Free Online Calculators

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

368 Calculators 16 Categories 100% Free

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Creatine Dosage Calculator

#1

Estimates the recommended daily creatine intake based on body weight and desired dosage per kilogram.

Health & Fitness 4 variants

Hotel Occupancy Rate Calculator

Calculates the percentage of occupied rooms over a given period.

Business & Retail 4 variants

BMI Prime Calculator

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

Health & Fitness 5 variants

LDL to HDL Cholesterol Ratio Calculator

Calculates the LDL to HDL cholesterol ratio to help assess cardiovascular risk.

Health & Fitness 4 variants

Watts to BTU Calculator

Convert electrical energy usage in watts and hours to British Thermal Units (BTU).

Science & Engineering 4 variants

Heat Energy Calculator

Calculate the amount of heat energy required to change the temperature of a substance using the specific heat formula.

Science & Engineering 5 variants
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Calculators

368 total
Pulse Pressure Calculator Calculates pulse pressure by subtracting diastolic blood pressure from systolic...
Health & Fitness
EN
Total Cholesterol to HDL Ratio Calculator Calculates the Total Cholesterol to HDL Cholesterol ratio, a cardiovascular risk...
Health & Fitness
EN
Mean Corpuscular Volume (MCV) Calculator Estimates the average size of red blood cells using hematocrit and RBC count.
Health & Fitness
EN
A Body Shape Index (ABSI) Calculator Calculates A Body Shape Index (ABSI) to estimate abdominal obesity risk based on...
Health & Fitness
EN
Heart Rate Recovery (HRR) Calculator Calculates how much your heart rate decreases in the first minute after exercise...
Health & Fitness
EN
Debt-to-Asset Ratio Calculator Calculate the percentage of a company's or individual's assets financed by debt...
Financial Calculators
EN
FEV1/FVC Ratio Calculator Estimates lung function by calculating the percentage ratio between Forced Expir...
Health & Fitness
EN
Car Depreciation Cost Per Mile Calculator Calculate how much your car depreciates per mile driven based on purchase price,...
Financial Calculators
EN
Dimensional Weight (Volumetric Weight) Calculator Calculate the dimensional (volumetric) weight of a package for shipping cost est...
Business & Retail
EN
Rectangular Swimming Pool Volume Calculator Calculate the total volume of a rectangular swimming pool in cubic meters.
Construction & Home
EN
Price Elasticity of Demand (PED) Calculator Calculates the Price Elasticity of Demand using the standard elasticity formula.
Business & Retail
EN
Concrete Block Calculator Estimates the total number of concrete blocks required to build a wall based on...
Construction & Home
EN