Calculators

Calculates Spearman's rank correlation coefficient, measuring the strength and direction of association between two ranked variables.

Calculates probabilities for the number of trials needed to get the first success in Bernoulli trials.

This calculator determines the gear ratio of a bicycle based on the chainring size and the cog size on the cassette. It helps cyclists understand the mechanical advantage and the effective distance traveled per pedal revolution.

Calculates target split times for different segments of a race or run based on overall goal time.

Calculates the time it takes for an object to complete one orbit around another object using Kepler's Third Law.

Calculates terms, sums, or the formula for an arithmetic sequence.

Calculates maintenance intravenous fluid rates for children based on the Holliday-Segar method.

Calculates Value Added Tax (VAT) on a given price, and the final price including VAT.

Converts amounts between different currencies based on exchange rates.

Calculates the total operating cost per day based on various business expenses.