📊 Common Conversions Cheat Sheet
Quick reference guide for the most frequently used unit conversions. Bookmark this page for instant access!
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Temperature
Common Reference Points
Absolute Zero-273.15°C = -459.67°F
Water Freezes0°C = 32°F = 273.15 K
Room Temperature20°C = 68°F = 293.15 K
Body Temperature37°C = 98.6°F = 310.15 K
Water Boils100°C = 212°F = 373.15 K
Quick Conversion Formulas
°F = (°C × 9/5) + 32
Celsius to Fahrenheit
°C = (°F - 32) × 5/9
Fahrenheit to Celsius
K = °C + 273.15
Celsius to Kelvin
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Weight / Mass
Metric ↔ Imperial
1 kg2.205 lbs
1 lb0.454 kg
1 oz28.35 g
100 g3.527 oz
Metric Units
1 kg1,000 g
1 ton1,000 kg
1 g1,000 mg
500 g0.5 kg
Imperial Units
1 lb16 oz
1 ton (US)2,000 lbs
1 stone14 lbs
8 oz0.5 lbs
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Length / Distance
Common Conversions
1 mile1.609 km
1 km0.621 miles
1 inch2.54 cm
1 foot30.48 cm
1 meter3.281 feet
Metric Units
1 km1,000 m
1 m100 cm
1 cm10 mm
500 m0.5 km
Imperial Units
1 mile5,280 ft
1 yard3 feet
1 foot12 inches
6 feet2 yards
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Volume / Capacity
Metric ↔ Imperial
1 liter0.264 gal (US)
1 gal (US)3.785 L
1 cup (US)236.6 mL
500 mL2.11 cups
Metric Units
1 L1,000 mL
1 m³1,000 L
250 mL0.25 L
1 cc1 mL
Cooking Measures
1 cup16 tbsp
1 tbsp3 tsp
1 pint2 cups
1 quart4 cups
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Speed
Common Speed Limits
30 mph (residential)48 kph
55 mph (highway)89 kph
70 mph (freeway)113 kph
100 kph62 mph
Quick Formula
mph × 1.609 = kph
kph × 0.621 = mph
Quick estimate: To convert mph to kph, multiply by 1.6. To convert kph to mph, multiply by 0.6.
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