Tools

Find the weekday for any valid calendar date.

Count weekdays between two dates while excluding Saturdays and Sundays.

Convert decimal bytes, KB, MB, GB and TB.

Convert degrees, radians and gradians.

Convert seconds, minutes, hours, days and weeks.

Convert watts, kilowatts and mechanical horsepower.

Convert joules, kilojoules, calories, kilocalories, Wh and kWh.

Convert Pa, kPa, bar, atm, psi and mmHg.

Convert between m/s, km/h, mph and knots.

Convert square metric and imperial area units.

Estimate English readability using the Flesch Reading Ease formula.

Estimate pages from word count and formatting assumptions.

Convert text to a practical English title-case style.

Convert a title or phrase into a clean lowercase URL slug.

Reverse characters, words or line order in text.

Sort lines alphabetically, numerically or by length.

Sort non-empty lines alphabetically in ascending or descending order.

Clean repeated spaces, blank lines and surrounding whitespace from text.

Count total and non-empty lines in pasted text.

Calculate percent yield from actual and theoretical yield.

Calculate dilution factor from aliquot and final volume or from stock and final concentration.

Calculate slope and intercept from two calibration points.

Convert between relative centrifugal force and RPM using rotor radius.

Calculate the f2 similarity factor for two dissolution profiles.