Unit Converter
Convert anything with clear units and instant answers.
Quick unit converter
1 kilometer = 0.621371192237 miles
Enter a value and select your units. Answers update automatically and are rounded to 10 significant digits.
Uses international feet, inches and miles.
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Common conversions
- Gold Tola to Grams
- CM to Inches
- Square Feet to Square Meters
- Liters to Gallons
- Celsius to Fahrenheit
- Seconds to Minutes
- MPH to KM/H
- MB to GB
- KG to Pounds
- Pounds to KG
- KM to Miles
- Million to Crore
- Grams to Kilograms
- CM to Feet and Inches
- Grams to Cups
- MPG to KM/L
- Joules to Calories
- HP to kW
- PSI to Bar
- Newtons to Pounds-Force
- Bytes to KB
- Binary to Decimal
- Degrees to Radians
- Hz to kHz
- Amps to Milliamps
- L/min to GPM
- kg/m³ to g/cm³
- Dynamic Viscosity Converter
- Specific Heat Capacity
- Lumens to Lux
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How to convert units
Choose a measurement type, enter your value, then select the source and destination units. Use the swap button to reverse them. For a full explanation, open a conversion page to see the formula, examples and a conversion table.
Check the unit convention when comparing results. US and imperial gallons differ, ingredient weight needs density to become volume, and calendar months are not fixed durations.
Frequently asked questions
How do I use the quick unit converter?
Choose a measurement tab, enter the number in From, and select your From and To units. The result updates automatically. Select the swap button to reverse the units.
Where can I find formulas and examples?
Open a common conversion or choose a tool from a category. Full conversion pages explain the formula, provide numerical examples and a reference table, and answer frequently asked questions.
Which gallon and cup does the converter use?
Unqualified gallons and cups use US customary liquid measures. Imperial gallons and metric cups have separate labels in the unit list. Check the selected unit against your recipe or measurement source.
Can I use decimal or negative numbers?
Yes, when the quantity permits them. Temperatures cannot be below absolute zero. The calculator changes units; it does not determine whether another negative measurement is physically meaningful.