Free Online Calculator Tools

Simple, fast, and accurate conversions and calculations for your projects.

Area

Area Conversion Table

Select a conversion from the table below. Click any cell to convert between units.

From / To Acre Hectare Square Centimeter Square Foot Square Inch Square Kilometer Square Meter Square Mile Square Millimeter Square Yard
Acre — Acre to Hectare Acre to Square Centimeter Acre to Square Foot Acre to Square Inch Acre to Square Kilometer Acre to Square Meter Acre to Square Mile Acre to Square Millimeter Acre to Square Yard
Hectare Hectare to Acre — Hectare to Square Centimeter Hectare to Square Foot Hectare to Square Inch Hectare to Square Kilometer Hectare to Square Meter Hectare to Square Mile Hectare to Square Millimeter Hectare to Square Yard
Square Centimeter Square Centimeter to Acre Square Centimeter to Hectare — Square Centimeter to Square Foot Square Centimeter to Square Inch Square Centimeter to Square Kilometer Square Centimeter to Square Meter Square Centimeter to Square Mile Square Centimeter to Square Millimeter Square Centimeter to Square Yard
Square Foot Square Foot to Acre Square Foot to Hectare Square Foot to Square Centimeter — Square Foot to Square Inch Square Foot to Square Kilometer Square Foot to Square Meter Square Foot to Square Mile Square Foot to Square Millimeter Square Foot to Square Yard
Square Inch Square Inch to Acre Square Inch to Hectare Square Inch to Square Centimeter Square Inch to Square Foot — Square Inch to Square Kilometer Square Inch to Square Meter Square Inch to Square Mile Square Inch to Square Millimeter Square Inch to Square Yard
Square Kilometer Square Kilometer to Acre Square Kilometer to Hectare Square Kilometer to Square Centimeter Square Kilometer to Square Foot Square Kilometer to Square Inch — Square Kilometer to Square Meter Square Kilometer to Square Mile Square Kilometer to Square Millimeter Square Kilometer to Square Yard
Square Meter Square Meter to Acre Square Meter to Hectare Square Meter to Square Centimeter Square Meter to Square Foot Square Meter to Square Inch Square Meter to Square Kilometer — Square Meter to Square Mile Square Meter to Square Millimeter Square Meter to Square Yard
Square Mile Square Mile to Acre Square Mile to Hectare Square Mile to Square Centimeter Square Mile to Square Foot Square Mile to Square Inch Square Mile to Square Kilometer Square Mile to Square Meter — Square Mile to Square Millimeter Square Mile to Square Yard
Square Millimeter Square Millimeter to Acre Square Millimeter to Hectare Square Millimeter to Square Centimeter Square Millimeter to Square Foot Square Millimeter to Square Inch Square Millimeter to Square Kilometer Square Millimeter to Square Meter Square Millimeter to Square Mile — Square Millimeter to Square Yard
Square Yard Square Yard to Acre Square Yard to Hectare Square Yard to Square Centimeter Square Yard to Square Foot Square Yard to Square Inch Square Yard to Square Kilometer Square Yard to Square Meter Square Yard to Square Mile Square Yard to Square Millimeter —

Digital-Storage

Distance

Energy

Energy Conversion Table

Select a conversion from the table below. Click any cell to convert between units.

From / To British Thermal Unit Calorie Foot Pound Joule Kilocalorie Kilojoule Kilowatt Hour Watt Hour
British Thermal Unit — British Thermal Unit to Calorie British Thermal Unit to Foot Pound British Thermal Unit to Joule British Thermal Unit to Kilocalorie British Thermal Unit to Kilojoule British Thermal Unit to Kilowatt Hour British Thermal Unit to Watt Hour
Calorie Calorie to British Thermal Unit — Calorie to Foot Pound Calorie to Joule Calorie to Kilocalorie Calorie to Kilojoule Calorie to Kilowatt Hour Calorie to Watt Hour
Foot Pound Foot Pound to British Thermal Unit Foot Pound to Calorie — Foot Pound to Joule Foot Pound to Kilocalorie Foot Pound to Kilojoule Foot Pound to Kilowatt Hour Foot Pound to Watt Hour
Joule Joule to British Thermal Unit Joule to Calorie Joule to Foot Pound — Joule to Kilocalorie Joule to Kilojoule Joule to Kilowatt Hour Joule to Watt Hour
Kilocalorie Kilocalorie to British Thermal Unit Kilocalorie to Calorie Kilocalorie to Foot Pound Kilocalorie to Joule — Kilocalorie to Kilojoule Kilocalorie to Kilowatt Hour Kilocalorie to Watt Hour
Kilojoule Kilojoule to British Thermal Unit Kilojoule to Calorie Kilojoule to Foot Pound Kilojoule to Joule Kilojoule to Kilocalorie — Kilojoule to Kilowatt Hour Kilojoule to Watt Hour
Kilowatt Hour Kilowatt Hour to British Thermal Unit Kilowatt Hour to Calorie Kilowatt Hour to Foot Pound Kilowatt Hour to Joule Kilowatt Hour to Kilocalorie Kilowatt Hour to Kilojoule — Kilowatt Hour to Watt Hour
Watt Hour Watt Hour to British Thermal Unit Watt Hour to Calorie Watt Hour to Foot Pound Watt Hour to Joule Watt Hour to Kilocalorie Watt Hour to Kilojoule Watt Hour to Kilowatt Hour —

Fuel-Economy

Power

Pressure

Time

Time Conversion Table

Select a conversion from the table below. Click any cell to convert between units.

From / To Century Day Decade Hour Millennium Millisecond Minute Second Week Year
Century — Century to Day Century to Decade Century to Hour Century to Millennium Century to Millisecond Century to Minute Century to Second Century to Week Century to Year
Day Day to Century — Day to Decade Day to Hour Day to Millennium Day to Millisecond Day to Minute Day to Second Day to Week Day to Year
Decade Decade to Century Decade to Day — Decade to Hour Decade to Millennium Decade to Millisecond Decade to Minute Decade to Second Decade to Week Decade to Year
Hour Hour to Century Hour to Day Hour to Decade — Hour to Millennium Hour to Millisecond Hour to Minute Hour to Second Hour to Week Hour to Year
Millennium Millennium to Century Millennium to Day Millennium to Decade Millennium to Hour — Millennium to Millisecond Millennium to Minute Millennium to Second Millennium to Week Millennium to Year
Millisecond Millisecond to Century Millisecond to Day Millisecond to Decade Millisecond to Hour Millisecond to Millennium — Millisecond to Minute Millisecond to Second Millisecond to Week Millisecond to Year
Minute Minute to Century Minute to Day Minute to Decade Minute to Hour Minute to Millennium Minute to Millisecond — Minute to Second Minute to Week Minute to Year
Second Second to Century Second to Day Second to Decade Second to Hour Second to Millennium Second to Millisecond Second to Minute — Second to Week Second to Year
Week Week to Century Week to Day Week to Decade Week to Hour Week to Millennium Week to Millisecond Week to Minute Week to Second — Week to Year
Year Year to Century Year to Day Year to Decade Year to Hour Year to Millennium Year to Millisecond Year to Minute Year to Second Year to Week —

Velocity

Volume

Weight

About Our Calculators

Our free online calculators are designed to be simple, accurate, and easy to use. We believe that useful tools should be accessible to everyone without the need for signups, subscriptions, or dealing with annoying ads.

Our unit conversion calculators provide instant and accurate conversions between different measurement units. Whether you're working on a project, studying, or just need to convert units for everyday use, our calculators make it easy.