Unit Converter Guide - Convert Any Measurement

Unit Conversion Basics

Unit conversion is essential for cooking, science, travel, and everyday life. Understanding the relationships between units helps you work with measurements from any system.

Common Conversion Categories

Length

From	To	Multiply by
Inches	Centimeters	2.54
Feet	Meters	0.3048
Miles	Kilometers	1.609
Yards	Meters	0.9144

Weight/Mass

From	To	Multiply by
Ounces	Grams	28.35
Pounds	Kilograms	0.4536
Stones	Kilograms	6.35
Tons (US)	Metric Tons	0.907

Volume

From	To	Multiply by
Fluid Oz (US)	Milliliters	29.57
Cups	Liters	0.2366
Gallons (US)	Liters	3.785
Quarts	Liters	0.946

Temperature

• °C to °F: (°C × 9/5) + 32
• °F to °C: (°F - 32) × 5/9
• °C to K: °C + 273.15

Quick Mental Conversions

Approximate Rules

• Km to Miles: Multiply by 0.6 (or divide by 1.6)
• Kg to Pounds: Multiply by 2.2
• Liters to Gallons: Divide by 4 (roughly)
• Cm to Inches: Divide by 2.5

Temperature Shortcuts

• 0°C = 32°F (freezing)
• 20°C ≈ 68°F (room temp)
• 37°C ≈ 98.6°F (body temp)
• 100°C = 212°F (boiling)

Metric Prefixes

Prefix	Symbol	Factor
Kilo	k	1,000
Hecto	h	100
Deca	da	10
Base	-	1
Deci	d	0.1
Centi	c	0.01
Milli	m	0.001

Area and Volume

Area

• 1 square foot = 0.0929 m²
• 1 acre = 4,047 m² = 0.4047 hectares
• 1 square mile = 2.59 km²

Volume (Cooking)

• 1 teaspoon = 5 ml
• 1 tablespoon = 15 ml = 3 teaspoons
• 1 cup = 240 ml (US)
• 1 cup = 250 ml (metric)

Speed

• 1 mph = 1.609 km/h
• 1 knot = 1.852 km/h = 1.15 mph

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Conclusion

Unit conversion is a practical skill that’s made easier with the right tools. Bookmark our converter for quick access whenever you need to translate measurements between systems.