Time unit conversion calculators — seconds, minutes, hours, days, weeks, months, years. Browse our free time tools below — all calculators are instant, accurate, and require no sign-up.
Day Converter — Convert days to hours, minutes, seconds, weeks, months, and years with preset examples, breakdown display, and reference duration tables.
Days to Months Converter — Convert days to months using average, 30-day, or 31-day methods with breakdown display, decimal precision control, and reference tables.
Days to Years Converter — Convert days to years with average, common, and leap year options. Shows breakdown in years, months, days plus reference milestone table.
Degrees Minutes Seconds Converter — Convert between DMS and decimal degrees with bidirectional modes, radians output, arc-minute/second totals, and world landmarks reference.
Degrees to Minutes Converter — Convert degrees to arc-minutes, arc-seconds, radians, and gradians with ground distance equivalents and a comprehensive reference table.
Degrees to Seconds Converter — Convert degrees to arc-seconds, arc-minutes, radians, milliradians, and gradians with ground distance equivalents and resolution reference.
Hour Converter — Convert hours to minutes, seconds, days, weeks, months, and years with bidirectional input and time breakdown display.
Hours to Weeks Converter — Convert hours to calendar weeks and work weeks with customizable work schedule, visual proportion bar, and comprehensive reference table.
Hours to Years Converter — Convert hours to years, months, weeks, and days with milestone markers, preset values for common hour counts, and a comprehensive reference table.
Minute Converter — Convert minutes to hours, seconds, days, weeks, months, and years with bidirectional multi-unit support and quick conversion table.
Minutes to Days Converter — Convert minutes to days, hours, weeks, months, and years with natural breakdown, precision control, and comprehensive reference table.
Minutes to Decimal Hours Converter — Convert minutes to decimal hours with billing increment rounding, bidirectional conversion, and a complete 0-60 minute reference table.
Minutes to Years Converter — Convert minutes to years, months, weeks, days, and hours with natural breakdown display and a reference table for large minute counts.
Months to Years Converter — Convert months to years, days, weeks, and hours with natural years-and-months breakdown, presets for common terms, and a comprehensive table.
Milliseconds to Seconds Converter — Convert milliseconds to seconds, microseconds, nanoseconds, and minutes. Includes FPS frame-time context and a performance reference table.
Seconds Converter — Convert seconds to minutes, hours, days, weeks, years, milliseconds, and nanoseconds with a natural breakdown and comprehensive reference table.
Seconds to Days Converter — Convert seconds to days, hours, minutes, and weeks with a natural breakdown, day-progress bar, and a comprehensive reference table.
Seconds to Years Converter — Convert seconds to years, months, weeks, days, and hours with a natural breakdown and a reference table spanning days to centuries.
Weeks to Months Converter — Convert weeks to months, days, years, and hours. Includes a months-and-days breakdown, pregnancy and project timeline context, and an extensive table.
Weeks to Years Converter — Convert weeks to years, months, days, and hours. Features a years-and-weeks breakdown, presets for common durations, and a context-labeled reference table.
Years to Decades Converter — Convert years to decades, centuries, millennia, months, days, and hours. Includes a historical era reference and an extensive years-to-decades table.