Fundamental Unit Conversion Formulas
Unit conversions rely on standardized multiplier factors and scale shifts defined by international measurement bodies (BIPM and NIST):
Temperature°F = (°C × 9/5) + 32
Mass / Weightlbs = kg × 2.20462
Distance / Speedkm = miles × 1.60934
Common Quick Conversion Factors
Length
1 inch = 2.54 cm
1 meter = 3.28084 ft
1 mile = 1.60934 km
Weight
1 kg = 2.20462 lbs
1 lb = 453.592 grams
1 oz = 28.3495 grams
Temperature
0°C = 32°F
20°C = 68°F (Room)
100°C = 212°F (Boil)
Volume
1 liter = 33.814 fl oz
1 US gal = 3.78541 L
1 cup = 236.588 mL
Step-by-Step Unit Conversion Examples
Kilograms to Pounds (kg to lbs)
To convert 75 kilograms to imperial pounds:
- Identify conversion factor: 1 kg =
2.20462262 lbs. - Multiply: 75 × 2.20462262 = 165.35 lbs.
Celsius to Fahrenheit (°C to °F)
To convert room temperature 22°C to Fahrenheit:
- Multiply by 9/5: 22 × 1.8 =
39.6. - Add offset of 32: 39.6 + 32 = 71.6°F.
Frequently Asked Questions
Common questions and detailed answers regarding calculations and formulas.
1 kilogram is equal to approximately 2.20462 pounds. To convert kilograms to pounds, multiply your weight in kg by 2.20462. For example, 70 kg × 2.20462 = 154.32 lbs.