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Converter

Converter

Section titled “Converter”

Free online converter for instant unit conversions across length, weight, volume, temperature, time, area, energy, and more measurement types.

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Use Cases

Section titled “Use Cases”

This converter is essential for international business converting currencies and measurements, students solving science homework, cooks adapting recipes from different countries, travelers understanding local measurements, engineers standardizing specifications, and DIY enthusiasts working with different tools.

What is a Converter?

Section titled “What is a Converter?”

A converter is a tool that transforms values from one unit of measurement to another within the same category. It uses precise mathematical formulas and standardized conversion factors to ensure accuracy across different measurement systems.

Section titled “Popular Conversions”

Length Conversions

Section titled “Length Conversions”

Switch between metric and imperial distance measurements.

Common Conversions:

  • Meters ↔ Feet
  • Kilometers ↔ Miles
  • Inches ↔ Centimeters
  • Yards ↔ Meters

Examples:

  • 1 meter = 3.281 feet
  • 1 mile = 1.609 kilometers
  • 1 inch = 2.54 centimeters
  • 100 yards = 91.44 meters

Weight/Mass Conversions

Section titled “Weight/Mass Conversions”

Convert between different weight measurement systems.

Common Conversions:

  • Kilograms ↔ Pounds
  • Grams ↔ Ounces
  • Tons ↔ Metric Tons
  • Pounds ↔ Stones

Examples:

  • 1 kilogram = 2.205 pounds
  • 1 ounce = 28.35 grams
  • 1 ton = 0.907 metric tons
  • 1 stone = 14 pounds

Volume Conversions

Section titled “Volume Conversions”

Transform liquid and dry volume measurements.

Common Conversions:

  • Liters ↔ Gallons
  • Milliliters ↔ Fluid Ounces
  • Cups ↔ Milliliters
  • Pints ↔ Liters

Examples:

  • 1 liter = 0.264 gallons
  • 1 fluid ounce = 29.57 milliliters
  • 1 cup = 236.6 milliliters
  • 1 pint = 0.473 liters

Temperature Conversions

Section titled “Temperature Conversions”

Convert between different temperature scales.

Common Conversions:

  • Celsius ↔ Fahrenheit
  • Kelvin ↔ Celsius
  • Fahrenheit ↔ Kelvin

Examples:

  • 0°C = 32°F (water freezes)
  • 100°C = 212°F (water boils)
  • 20°C = 68°F (room temperature)
  • 273.15 K = 0°C (absolute scale)

Time Conversions

Section titled “Time Conversions”

Convert between different time units.

Common Conversions:

  • Hours ↔ Minutes
  • Days ↔ Hours
  • Weeks ↔ Days
  • Years ↔ Days

Examples:

  • 1 hour = 60 minutes
  • 1 day = 24 hours
  • 1 week = 7 days
  • 1 year = 365 days

Conversion Categories

Section titled “Conversion Categories”

Physical Measurements

Section titled “Physical Measurements”
  • Length: meter, kilometer, foot, mile, inch, centimeter
  • Area: square meter, hectare, acre, square foot
  • Volume: liter, gallon, milliliter, cubic meter
  • Mass: kilogram, pound, gram, ounce, ton

Energy & Power

Section titled “Energy & Power”
  • Energy: joule, kilowatt-hour, BTU, calorie
  • Power: watt, kilowatt, horsepower
  • Pressure: pascal, PSI, bar, atmosphere
  • Force: newton, pound-force, dyne

Thermal & Electrical

Section titled “Thermal & Electrical”
  • Temperature: Celsius, Fahrenheit, Kelvin
  • Electric Current: ampere, milliampere
  • Frequency: hertz, kilohertz, megahertz

Digital & Angular

Section titled “Digital & Angular”
  • Data Size: byte, kilobyte, megabyte, gigabyte
  • Angle: degree, radian, gradian
  • Speed: meter/second, kilometer/hour, mile/hour

Examples

Section titled “Examples”
  • 5 feet = 1.524 meters (height conversion)
  • 2.5 liters = 0.66 gallons (fuel measurement)
  • 72°F = 22.2°C (weather temperature)
  • 50 pounds = 22.68 kilograms (baggage weight)
  • 100 miles = 160.9 kilometers (road distance)
  • 2 hours = 120 minutes (time duration)
  • 500 MB = 0.488 GB (file size)
  • 90 degrees = 1.571 radians (angle)

Conversion Tips

Section titled “Conversion Tips”

Choose the Right System

Section titled “Choose the Right System”

Metric: Used by most countries, scientific work Imperial: Used in USA, some UK applications SI Units: International standard for science

Understand Precision

Section titled “Understand Precision”
  • Everyday use: 2 decimal places usually sufficient
  • Scientific work: Use full precision provided
  • Engineering: Match precision to measurement tools

Multi-Step Conversions

Section titled “Multi-Step Conversions”

For converting through multiple units:

  1. Convert to intermediate standard unit
  2. Then convert to target unit
  3. Keep precision throughout

Example: Miles → Feet → Inches

  • 1 mile = 5,280 feet
  • 5,280 feet = 63,360 inches

Common Mistakes & Tips

Section titled “Common Mistakes & Tips”

Confusing Similar Units: Don’t mix fluid ounces (volume) with ounces (weight), or square meters (area) with cubic meters (volume). They measure different things!

Rounding Too Early: When doing multi-step conversions, keep full precision until the final answer. Rounding intermediates compounds errors.

Temperature Confusion: Temperature value conversion (32°F = 0°C) differs from temperature difference conversion (1°F change = 0.556°C change). Use correct formula!

Mixing Systems Mid-Calculation: Stick with one system (all metric or all imperial) during calculations. Convert everything first, calculate, then convert back if needed.

Forgetting Context: Recipes use different cup sizes (US vs UK). Miles are different (statute vs nautical). Tons vary (US vs metric). Know which variant you need!

Using Wrong Formula: Each unit type has specific conversion factors. Don’t invent formulas—use verified conversion constants.

Frequently Asked Questions

Section titled “Frequently Asked Questions”

How do I convert between units?

Section titled “How do I convert between units?”

Enter your value, select the starting unit, choose the target unit, and the converter instantly calculates the result using precise conversion formulas.

Are all conversions exact?

Section titled “Are all conversions exact?”

Some conversions are exact definitions (1 inch = 2.54 cm exactly). Others are approximate due to rounding. Our converter uses official conversion factors for maximum accuracy.

Can I convert between different measurement types?

Section titled “Can I convert between different measurement types?”

No. You can only convert within the same category. Length converts to length, weight to weight, etc. You cannot convert meters to kilograms—they measure different things.

Why are there different types of gallons and tons?

Section titled “Why are there different types of gallons and tons?”

Historical reasons. US gallon ≠ Imperial gallon. US ton ≠ metric ton. Always specify which variant when conversion accuracy matters.

How many decimal places should I use?

Section titled “How many decimal places should I use?”

For everyday use, 2-3 decimals suffice. Scientific work may need 6+. Match precision to your measurement accuracy—don’t report 10 decimals from a rough measurement!

Is this converter free?

Section titled “Is this converter free?”

Yes! All conversion tools are completely free with no registration, limits, or hidden fees. Use as much as you need.

Section titled “Related Calculators”