Fuel Efficiency Converter
US MPG ↔ liters per 100 km using a fixed conversion constant.
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Height Converter
Centimeters ↔ feet and inches for body height planning.
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Celsius Fahrenheit Converter
Convert a temperature between °C and °F.
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Kilometers Miles Converter
Kilometers ↔ statute miles using the standard conversion constant.
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Pounds Kilograms Converter
Convert mass between pounds and kilograms.
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Liters US Gallons Converter
Liters ↔ US liquid gallons (not UK imperial).
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Inches ↔ Centimeters
Length conversion using 1 in = 2.54 cm.
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Meters ↔ Feet
Meters and feet using a fixed conversion constant.
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Acres ↔ Square Feet
1 acre = 43,560 sq ft—common US land unit helper.
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US Quarts ↔ Liters
US liquid quarts and liters (not imperial UK quarts).
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Ounces ↔ Grams
Avoirdupois ounces and grams (mass, not fl oz).
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m/s ↔ km/h
Meters per second and kilometers per hour (× 3.6).
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Grams to Moles
Mass and molar mass—amount in moles (n = m / M).
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Rectangular Pool (US gal)
Length, width, depth in feet—rough US gallons of water.
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Yards ↔ Meters
International yard (0.9144 m) conversion both ways.
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Acres ↔ Hectares
Land area: international acre and hectare.
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Sand / Fill (yd³)
Length, width, depth in feet—cubic yards of fill.
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m² ↔ ft²
Floor or land area between square meters and square feet.
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Nautical Miles ↔ km
International nautical mile (1.852 km) both ways.
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ft/s ↔ mph
Feet per second and miles per hour—speed conversion.
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kcal ↔ kJ
Food energy kilocalories and kilojoules (×4.184).
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Tsubo ↔ m²
Japanese tsubo and square meters for property area.
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