Math & Numbers
Convert yards to inches with configurable decimal precision
yard-to-inchesMath & Numbers
Convert yards to feet with configurable decimal precision
yard-to-feetMath & Numbers
Convert yards to meters with configurable decimal precision
yard-to-meterMath & Numbers
Run one-sample Z tests for a mean with known population standard deviation or a single population proportion
z-test-calculatorMath & Numbers
Calculate a z-score from a raw value using a dataset or manually entered mean and standard deviation
z-score-calculatorMath & Numbers
Convert a z-score into normal-distribution percentile, tail probability, or central area
z-score-to-percentile-calculatorMath & Numbers
Factor any integer into its prime factors with detailed analysis and mathematical properties.
prime-factorizationMath & Numbers
Check if a number is prime (a natural number greater than 1 that has no positive divisors other than 1 and itself)
prime-number-checkerMath & Numbers
Convert between Arabic numbers and Roman numerals with validation and detailed results
roman-numeral-converterMath & Numbers
Calculate percentages, percentage changes, and percentage relationships between numbers
percentage-calculatorMath & Numbers
Calculate water costs based on usage and water rates
water-bill-calculatorMath & Numbers
Convert between different pressure units (pascal, bar, psi, atmosphere, etc.)
pressure-converter