Unit Converter › Time
scale · base second
Time converter
Seconds through years, with the year defined. 8 units, every one shown at once.
Convert
scale · base second
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| Every unit at once | Value | Unit |
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months and years are not fixed
A month here is exactly 30 days and a year is the Julian year of 365.25 days, because calendar months vary from 28 to 31 days and calendar years from 365 to 366. Anything else would be a guess presented as arithmetic.
Every time pair
56 pages, one for each direction.
ms → sms → minms → hms → dms → wkms → moms → yrs → mss → mins → hs → ds → wks → mos → yrmin → msmin → smin → hmin → dmin → wkmin → momin → yrh → msh → sh → minh → dh → wkh → moh → yrd → msd → sd → mind → hd → wkd → mod → yrwk → mswk → swk → minwk → hwk → dwk → mowk → yrmo → msmo → smo → minmo → hmo → dmo → wkmo → yryr → msyr → syr → minyr → hyr → dyr → wkyr → mo
Other categories
Mass
Kilograms, pounds, stone, ounces and both tons.
Temperature
Celsius, Fahrenheit, kelvin and Rankine.
Length
Metric, imperial, and the nautical mile.
Volume
Litres, and US and Imperial measures kept apart.
Speed
km/h, mph, knots and metres per second.
Energy
Joules, calories, watt-hours and BTU.
Area
Square metres, feet, acres and hectares.
Data
Decimal MB and binary MiB, kept apart.
Data rate
Megabits per second versus megabytes per second.
Pressure
Bar, psi, atmospheres and millimetres of mercury.
Power
Watts, and the two different horsepowers.
Angle
Degrees, radians, gradians and turns.
Frequency
Hertz, kilohertz, megahertz and RPM.
Force
Newtons, kilogram-force and pounds-force.
Torque
Newton-metres and pound-feet.
Fuel economy
mpg and L/100 km — where bigger means worse.
Density
kg/m³, g/cm³ and pounds per cubic foot.
Cooking
Spoons and cups, with the country stated.
Illuminance
Lux and foot-candles.