Calculators

Calculates how many standard deviations a data point is from the mean of its distribution.

Calculates the difference in elapsed time between observers due to relative velocity or gravitational potential (Special/General Relativity).

Helps differentiate between transudative and exudative pleural effusions based on fluid analysis.

Calculates percentages and degrees for sectors representing proportions of a whole in a pie chart.

This calculator estimates body fat percentage using height and waist circumference. RFM is believed to be a more accurate measure of body fat than BMI.

Calculates the number of years between a BC (Before Christ) date and an AD (Anno Domini) date.

Helps determine how long your beauty products will last based on frequency of use and product quantity.

Calculates the required winch capacity for a vehicle based on its weight and potential recovery situations.

Calculates the scaled size or real size of an object, or determines the scale of a model.

Calculates the reduction potential of an electrochemical cell using the Nernst Equation. This equation relates the reduction potential of an electrochemical reaction to the standard electrode potential, temperature, and activities of the chemical species undergoing reduction and oxidation.