Math & Numbers
Convert therms to kilowatt-hours with configurable decimal precision
therm-to-kwhMath & Numbers
Convert tebibytes to terabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates
tib-to-tbMath & Numbers
Convert US short tons to pounds with configurable decimal precision
ton-to-lbMath & Numbers
Analyze two categorical factors and their interaction with a two-way ANOVA table
two-way-anova-calculatorMath & Numbers
Compare two independent proportions with a pooled two-proportion Z test and confidence interval
two-proportion-z-test-calculatorMath & Numbers
Run an independent two-sample t test with pooled variance from raw data or summary statistics
two-sample-t-test-calculatorMath & Numbers
Calculate PDF, CDF, survival probability, and interval probability for a continuous uniform distribution
uniform-distribution-calculatorMath & Numbers
Calculate a trimmed mean by removing the same percentage of low and high values before averaging
trimmed-mean-calculatorDate & Time
Compare multiple participants across time zones, find overlapping working windows, and export the best meeting slots to ICS
time-zone-workflow-schedulerDate & Time
Calculate duration, time gap, and business-day differences between two timestamps in different time zones with DST awareness
timezone-duration-calculatorMath & Numbers
Calculate tips and split bills between multiple people with customizable tip percentages
tip-calculatorMath & Numbers
Convert between different time units (seconds, minutes, hours, days, weeks, etc.)
time-converter