Conversion Factors Area conversion Input Select Conversion acres (ac) -> hectares (ha)acres (ac) -> square metres (m^2)hectares (ha) -> acres (ac)hectares (ha) -> square metres (m^2)perch (p) -> square metres (m^2)rood (rd) -> square metres (m^2)square centimetres (cm^2) -> square inches (in^2)square feet (ft^2) -> square metres (m^2)square inches (in^2) -> square centimetres (cm^2)square inches (in^2) -> square metres (m^2)square inches (in^2) -> square millimetres (mm^2)square metres (m^2) -> acres (ac)square metres (m^2) -> hectares (ha)square metres (m^2) -> perch (p)square metres (m^2) -> rood (rd)square metres (m^2) -> square feet (ft^2)square metres (m^2) -> square inches (in^2)square metres (m^2) -> square yards (yd^2)square millimetres (mm^2) -> square inches (in^2)square yards (yd^2) -> square metres (m^2) Factor (Multiply by) Result Length conversion Input Select Conversion centimetres (cm) -> inches (in)chains (ch) -> metres (m)feet (ft) -> metres (m)inches (in) -> centimetres (cm)inches (in) -> metres (m)inches (in) -> millimetres (mm)light years (l.y.) -> metres (m)links (lk) -> metres (m)metres (m) -> chains (ch)metres (m) -> feet (ft)metres (m) -> inches (in)metres (m) -> light years (l.y.)metres (m) -> links (lk)metres (m) -> milesmetres (m) -> perch (p)metres (m) -> yards (yd)miles -> metres (m)international nautical miles (n mile) -> metres (m)millimetres (mm) -> inches (in)perch (p) -> metres (m)yards (yd) -> metres (m) Factor (Multiply by) Result Mass conversion Input Select Conversion drams (dr) -> kilograms (kg)grain (gr) -> kilograms (kg)hundredweight (cwt) -> kilograms (kg)kilograms (kg) -> drams (dr)kilograms (kg) -> grain (gr)kilograms (kg) -> hundredweight (cwt)kilograms (kg) -> ounces (oz)kilograms (kg) -> pennyweight (dwt)kilograms (kg) -> pounds (lb)kilograms (kg) -> quarter (qr)kilograms (kg) -> short ton (sh tn)kilograms (kg) -> slugkilograms (kg) -> stonekilograms (kg) -> tonkilograms (kg) -> tonnekilograms (kg) -> troy ounces (oz tr)ounces (oz) -> kilograms (kg)pennyweight (dwt) -> kilograms (kg)pounds (lb) -> kilograms (kg)quarter (qr) -> kilograms (kg)short ton (sh tn) -> kilograms (kg)short ton (sh tn) -> tonnes (t)slug -> kilograms (kg)stone -> kilograms (kg)ton -> kilograms (kg)ton -> tonne (t)tonne (t) -> tontonne -> kilograms (kg)tonnes (t) -> short ton (sh tn)troy ounces (oz tr) -> kilograms (kg) Factor (Multiply by) Result Power conversion Input Select Conversion horsepower (hp) -> Watts (W)Watts (W) -> horsepower (hp) Factor (Multiply by) Result Pressure conversion Input Select Conversion millibars (mb) -> Pascals (Pa)millibars (mb) -> standard atmosphere (atm)millimetres of mercury (mm Hg) -> Pascals (Pa)Pascals (Pa) -> millibars (mb)Pascals (Pa) -> millimetres of mercury (mm Hg)Pascals (Pa) -> standard atmosphere (atm)standard atmosphere (atm) -> Pascals (Pa)standard atmosphere (atm) -> millibars (mb)lbf/in^2 (psi) -> kilo-Pascals (kPa)kilo-Pascals (kPa) -> lbf/in^2 (psi) Factor (Multiply by) Result Temperature conversion Input Select Conversion Celsius (degrees C) -> Fahrenheit (degrees F)Celsius (degrees C) -> Kelvin (K)Fahrenheit (degrees F) -> Celsius (degrees C)Fahrenheit (degrees F) -> Kelvin (K)Kelvin (K) -> Celsius (degrees C)Kelvin (K) -> Fahrenheit (degrees F) Factor (Multiply by) Result Velocity conversion Input Select Conversion feet per minute (ft/min) -> metres per second (m/s)kilometres per hour (km/h) -> miles per hour (mph)knotts, international -> meters per second (m/s)meters per second (m/s) -> knotts, internationalmetres per second (m/s) -> feet per minute (ft/min)metres per second (m/s) -> miles per hour (mph)miles per hour (mph) -> kilometres per hour (km/h)miles per hour (mph) -> metres per second (m/s) Factor (Multiply by) Result Volume conversion Input Select Conversion cubic centimetres (cm^3) -> cubic inches (in^3)cubic feet (ft^3) -> cubic metres (m^3)cubic feet (ft^3) -> litres (L)cubic inches (in^3) -> cubic centimetres (cm^3)cubic inches (in^3) -> cubic metres (m^3)cubic inches (in^3) -> cubic millimetres (mm^3)cubic metres (m^3) -> US gallons (US gal)cubic metres (m^3) -> cubic feet (ft^3)cubic metres (m^3) -> cubic inches (in^3)cubic metres (m^3) -> cubic yards (yd^3)cubic metres (m^3) -> fluid drachm (fl dr)cubic metres (m^3) -> fluid ounces (fl oz)cubic metres (m^3) -> gallons (gal)cubic metres (m^3) -> gillcubic metres (m^3) -> litres (L)cubic metres (m^3) -> minim (min)cubic metres (m^3) -> pints (pt)cubic metres (m^3) -> quarts (qt)cubic millimetres (mm^3) -> cubic inches (in^3)cubic yards (yd^3) -> cubic metres (m^3)fluid drachm (fl dr) -> cubic metres (m^3)fluid ounces (fl oz) -> cubic metres (m^3)fluid ounces (fl oz) -> millilitres (mL)gallons (gal) -> cubic metres (m^3)gallons (gal) -> litres (L)gill -> cubic metres (m^3)litres (L) -> US gallons (US gal)litres (L) -> cubic feet (ft^3)litres (L) -> gallons (gal)litres (L) -> minim (min)litres (L) -> cubic metres (m^3)millilitres (mL) -> fluid ounces (fl oz)minim (min) -> cubic metres (m^3)minim (min) -> litres (L)pints (pt) -> cubic metres (m^3)quarts (qt) -> cubic metres (m^3)US gallons (US gal) -> cubic metres (m^3)US gallons (US gal) -> litres (L) Factor (Multiply by) Result Energy conversion Input Select Conversion British thermal units (Btu) -> joules (J)calories (cal) -> joules (J)Joules (J) -> British thermal units (Btu)Joules (J) -> calories (cal)Joules (J) -> kilocalories (kcal)Joules (J) -> kilowatt hours (kW.h)kilocalories (kcal) -> joules (J)kilowatt hours (kW.h) -> joules (J) Factor (Multiply by) Result
