Free online math calculators for conversions, formulas, and problem solving.
Convert between square meters, square feet, acres, hectares, and more.
Convert between bits per second, bytes per second, megabits per second, and more.
Convert between binary, decimal, hexadecimal, and octal number systems.
Convert between watts, horsepower, kilowatts, BTU per hour, and more.
Convert between Celsius, Fahrenheit, Kelvin, and Rankine.
Length conversion calculator.
Convert between kilograms, pounds, ounces, and more.
Convert between liters, gallons, cubic meters, and more.
Convert between seconds, minutes, hours, days, and more.
Convert between Unix epoch timestamps and human-readable dates.
Convert between meters per second, kilometers per hour, miles per hour, and more.
Calculate percentages, percent increase/decrease, and more.
Statistical significance testing calculator.
Confidence interval calculator for means, proportions, and differences.
Calculate logarithms and antilogarithms with various bases.
Calculate and work with significant figures in numbers.
Convert between decimal and scientific notation, perform calculations.
Calculate area, perimeter, and costs for construction projects.
Calculate slope from points, angles, or linear regression.
Calculate missing sides, verify right triangles using a² + b² = c².
Calculate the circumference of a circle.
Calculate the numerical value of Hebrew words (Gematria).
