Weather and Other Unit Conversions

Temperature

Celsius (°C) Fahrenheit (°F) Kelvin (K) Rankine (°R)

Dew Point

Temperature (°F) Relative Humidity (%) Dew Point (°F)
Temperature (°C) Relative Humidity (%) Dew Point (°C)

Feels Like

Temperature (°F) Wind (mph) Wind Chill
Temperature (°F) Relative Humidity (%) Humidex
Temperature (°F) Dewpoint (°F) Humidex
Temperature (°C) Wind (km/h) Wind Chill
Temperature (°C) Relative Humidity (%) Humidex
Temperature (°C) Dewpoint (°C) Humidex

Speed

Km/hour (km/h) Miles/hour (mph) Knots (kt) Metres/sec. (m/s)

Distance

Kilometres (km) Metres (m) Centimetres (cm) Millimetres (mm)
Microns (µm) Angstroms (Å) Miles (mi) Yards (yd)
Feet (ft) Inches (in) Nautical miles Astronomical Units (AU)
Light years (ly) Parsec Pica (pi) Point (pt)

Pressure

kiloPascals (kPa) Millibars (mb) Inches of Mercury (inHg) Centimetres of Mercury (cmHg)
Metres of water (mH2O) Inches of water (inH2O) Atmospheres (atm) Kilogram/centimetre² (kg/cm²)

Weight

Milligrams (mg) Points Grains Carats
Grams (g) Scruples Pennyweight Drams
Apothecaries' Drachms Ounces (oz) Troy Ounces Newtons (N)
Troy Pounds Pounds (lb) Kilograms (kg) Stone (lb)
Quarters (qtr) Hundredweight (cwt) US Tons Metric tonnes (t)

Volume

Minims Cubic millimetres (mm³) Millilitres (ml) Cubic centimetres (cm³)
Fluid drachms Cubic inches (in³) Imperial Fluid ounces US Fluid ounces
(fl oz)
Gill Cups (c) US Pints (pt) Imperial Pints
Litres (l) US Quarts (qt) US Gallons (gal) Imperial Gallons
Peck Pin Cubic feet (ft³) Bushel
Firkin Kilderkin Barrel (beer) Hogshead
Puncheon Butt Cubic Yard (yd³) Tun
Hectolitres (hl) Cubic metres (m³) Cord

Area

Square millimetres(mm²) Square centimetres(cm²) Square Square Inches (in²) Square Feet (ft²)
Square Yards (yd²) Square metres(m²) Square Rods (rd²) Square Chains (ch²)
Ares (a) Roods (ro) Acres (ac) Hectares (ha)
Square Furlongs (fur²) Square Kilometres(km²) Square Miles (mi²)  
 

Blodgettville Units

Poppy Seed Barleycorn Inch (in) Nail
Palm Hand Finger Link
Span Foot (ft) Cubit Yard (yd)
Cloth-Yard Ell Fathom (fth) Rod (rd)
Chain (ch) Shackle Bolt Cable
Furlong Statute Mile (sm) Nautical Mile (nm) League

More on Units and Their History Available Here.      




Random Weather Facts

HEAT INDEX
The heat index combines air temperature and dew point in an attempt to determine the human-perceived equivalent temperature - how hot it feels. The human body normally cools itself by sweating, which evaporates and carries heat away from the body. However, when the relative humidity is high the evaporation rate is reduced, so heat is removed from the body at a lower rate causing it to retain more heat than it would in dry air.