Fuel Efficiency Converter
US MPG ↔ liters per 100 km using a fixed conversion constant.
計算機を使う
Height Converter
Centimeters ↔ feet and inches for body height planning.
計算機を使う
Celsius Fahrenheit Converter
Convert a temperature between °C and °F.
計算機を使う
Kilometers Miles Converter
Kilometers ↔ statute miles using the standard conversion constant.
計算機を使う
Pounds Kilograms Converter
Convert mass between pounds and kilograms.
計算機を使う
Liters US Gallons Converter
Liters ↔ US liquid gallons (not UK imperial).
計算機を使う
Inches ↔ Centimeters
Length conversion using 1 in = 2.54 cm.
計算機を使う
Meters ↔ Feet
Meters and feet using a fixed conversion constant.
計算機を使う
Acres ↔ Square Feet
1 acre = 43,560 sq ft—common US land unit helper.
計算機を使う
US Quarts ↔ Liters
US liquid quarts and liters (not imperial UK quarts).
計算機を使う
Ounces ↔ Grams
Avoirdupois ounces and grams (mass, not fl oz).
計算機を使う
Kelvin ↔ Celsius
Scientific temperature offset: K and °C.
計算機を使う
m/s ↔ km/h
Meters per second and kilometers per hour (× 3.6).
計算機を使う
Grams to Moles
Mass and molar mass—amount in moles (n = m / M).
計算機を使う
Rectangular Pool (US gal)
Length, width, depth in feet—rough US gallons of water.
計算機を使う
Yards ↔ Meters
International yard (0.9144 m) conversion both ways.
計算機を使う
Acres ↔ Hectares
Land area: international acre and hectare.
計算機を使う
Sand / Fill (yd³)
Length, width, depth in feet—cubic yards of fill.
計算機を使う
m² ↔ ft²
Floor or land area between square meters and square feet.
計算機を使う
Nautical Miles ↔ km
International nautical mile (1.852 km) both ways.
計算機を使う
Degrees ↔ Radians
Angle conversion using π (exact factor).
計算機を使う
ft/s ↔ mph
Feet per second and miles per hour—speed conversion.
計算機を使う
Bar ↔ PSI
Pressure between bar and pounds per square inch.
計算機を使う
kPa ↔ PSI
Kilopascals and psi—pressure conversion.
計算機を使う
Stones + lb → kg
UK stones and extra pounds to kilograms.
計算機を使う
kcal ↔ kJ
Food energy kilocalories and kilojoules (×4.184).
計算機を使う
Tsubo ↔ m²
Japanese tsubo and square meters for property area.
計算機を使う
Metric Ton ↔ kg
Tonnes and kilograms—SI mass conversion.
計算機を使う
fl oz → mL
US fluid ounces to milliliters.
計算機を使う