Unit Converter

Convert between different units of measurement with precision

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Smart Unit Converter: Convert Length, Weight, Temperature, Volume & More

Welcome to ToolSparx Free Unit Converter—your all-in-one measurement conversion tool! Whether you need a chart to convert metric units, want to convert the given lengths from the derived units to meters, need a chart for converting metric units, want to convert units to ml for volume, convert mg to international units for medications, convert milligrams to international units for dosage, convert micrograms to international units for precise measurements, or are converting compound si units for science—our smart converter handles all conversions instantly. Convert length, weight, temperature, volume, area, speed, time, and more—completely free with one click!

What is a Unit Converter?

A Unit Converter is an essential tool that transforms measurements from one unit system to another instantly. Instead of manually calculating conversions using a chart to convert metric units or memorizing conversion factors, our universal converter provides accurate results for length, weight, temperature, volume, area, speed, and time conversions. Perfect for students, engineers, scientists, travelers, cooks, and anyone needing quick, accurate unit conversions.

Our Free Unit Converter supports metric to imperial conversions, SI unit conversions, and specialized conversions like convert units to ml for volume or convert mg to international units for medical dosing. Whether you need a chart for converting metric units or to convert the given lengths from the derived units to meters—our smart converter handles all measurement systems.

Why Choose ToolSparx Unit Converter?

Our smart unit converter makes conversions easy with these powerful features:

100% Free with Unlimited Conversions

Completely free unit converter with no subscriptions or hidden fees. Convert as many measurements as needed for work, study, travel, or daily use.

All-in-One Universal Converter

Convert length, weight, temperature, volume, area, speed, time, and more—all in one tool. No need for separate converters.

Metric and Imperial Units

Seamlessly convert between metric (SI) and imperial systems. Our chart to convert metric units and chart for converting metric units make international conversions effortless.

Medical Unit Conversions

Convert mg to international units, convert milligrams to international units, and convert micrograms to international units for accurate medical dosing and pharmaceutical calculations.

Volume Conversions

Easily convert units to ml, liters, gallons, cups, and other volume measurements for cooking, chemistry, and daily use.

Length Conversions

Convert the given lengths from the derived units to meters, or between feet, inches, centimeters, kilometers, miles, and more.

Instant Accurate Results

Get immediate, precise conversions with proper precision and formatting. No manual calculations needed.

No Login Required

Start converting immediately without accounts or registration. Fast, easy, private conversions.

How to Use the Unit Converter

Using our smart unit converter is incredibly simple:

  1. Select Category: Choose length, weight, temperature, volume, area, speed, or time.
  2. Enter Value: Input the number you want to convert.
  3. Select From Unit: Choose the unit you're converting from.
  4. Select To Unit: Choose the unit you're converting to.
  5. Get Results: Conversion happens instantly—see the result immediately.

Length Conversions

Our length converter helps convert the given lengths from the derived units to meters and more:

Metric Length Units

  • Kilometer (km): 1 km = 1,000 meters
  • Meter (m): Base SI unit for length
  • Centimeter (cm): 1 cm = 0.01 meters
  • Millimeter (mm): 1 mm = 0.001 meters

Imperial Length Units

  • Mile (mi): 1 mile = 1,609.344 meters
  • Yard (yd): 1 yard = 0.9144 meters
  • Foot (ft): 1 foot = 0.3048 meters
  • Inch (in): 1 inch = 0.0254 meters

Common Length Conversions

Use our chart for converting metric units:

  • 1 meter = 100 centimeters = 1,000 millimeters
  • 1 kilometer = 1,000 meters = 0.621 miles
  • 1 mile = 1.609 kilometers = 5,280 feet
  • 1 foot = 12 inches = 30.48 centimeters

Weight/Mass Conversions

Metric Weight Units

  • Metric Ton (t): 1 ton = 1,000 kilograms
  • Kilogram (kg): 1 kg = 1,000 grams
  • Gram (g): Base metric unit for weight
  • Milligram (mg): 1 mg = 0.001 grams
  • Microgram (μg): 1 μg = 0.000001 grams

Imperial Weight Units

  • Pound (lb): 1 lb = 0.453592 kg = 453.592 g
  • Ounce (oz): 1 oz = 28.3495 grams
  • Stone (st): 1 stone = 6.35029 kg = 14 pounds

Medical Unit Conversions

Convert mg to International Units

To convert mg to international units or convert milligrams to international units for medications:

  • Conversion depends on specific substance (varies by drug)
  • Vitamin D: 40 IU = 1 mcg
  • Vitamin E: 1.49 IU = 1 mg
  • Vitamin A: 3.33 IU = 1 mcg
  • Insulin: 1 IU = 0.0347 mg

Important: Always consult medical references or healthcare providers for precise medication conversions.

Convert Micrograms to International Units

To convert micrograms to international units (μg to IU):

  • Vitamin D3: 1 μg = 40 IU
  • Folate: 1 μg = 1 μg (measured in μg, not IU)
  • B12: 1 μg = 1 μg (measured in μg, not IU)

Volume Conversions

Convert Units to mL

Our converter helps convert units to ml and other volume measurements:

  • 1 Liter (L) = 1,000 mL
  • 1 Gallon (US) = 3,785.41 mL
  • 1 Quart = 946.353 mL
  • 1 Cup = 236.588 mL
  • 1 Fluid Ounce = 29.5735 mL
  • 1 Tablespoon = 14.7868 mL
  • 1 Teaspoon = 4.92892 mL

Temperature Conversions

Celsius, Fahrenheit, Kelvin Formulas

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

Common Temperature Conversions

  • 0°C = 32°F = 273.15 K (Water freezing point)
  • 100°C = 212°F = 373.15 K (Water boiling point)
  • 37°C = 98.6°F = 310.15 K (Normal body temperature)
  • -40°C = -40°F = 233.15 K (Same in both Celsius and Fahrenheit)

Chart to Convert Metric Units

Use this chart for converting metric units quickly:

Metric Length Chart

Kilometer → Meter → Centimeter → Millimeter
1 km = 1,000 m = 100,000 cm = 1,000,000 mm
1 m = 0.001 km = 100 cm = 1,000 mm
1 cm = 0.00001 km = 0.01 m = 10 mm
1 mm = 0.000001 km = 0.001 m = 0.1 cm

Metric Weight Chart

Ton → Kilogram → Gram → Milligram → Microgram
1 t = 1,000 kg = 1,000,000 g = 1,000,000,000 mg
1 kg = 0.001 t = 1,000 g = 1,000,000 mg
1 g = 0.000001 t = 0.001 kg = 1,000 mg
1 mg = 0.001 g = 1,000 μg

Metric Volume Chart

Liter → Milliliter
1 L = 1,000 mL
1 mL = 0.001 L = 1 cm³

Converting Compound SI Units

Converting compound si units involves multiple unit types combined:

Speed (Length/Time)

  • 1 m/s = 3.6 km/h = 2.237 mph
  • 1 km/h = 0.278 m/s = 0.621 mph
  • 1 mph = 1.609 km/h = 0.447 m/s

Density (Mass/Volume)

  • 1 g/cm³ = 1,000 kg/m³
  • 1 kg/L = 1 g/mL = 1,000 kg/m³

Pressure (Force/Area)

  • 1 Pascal (Pa) = 1 N/m²
  • 1 bar = 100,000 Pa
  • 1 atm = 101,325 Pa

Common Conversion Use Cases

Cooking and Recipes

Convert units to ml for liquid ingredients, ounces to grams for baking, cups to liters for international recipes.

Travel and Navigation

Convert miles to kilometers for road trips, feet to meters for heights, Fahrenheit to Celsius for weather.

Science and Engineering

Use chart for converting metric units in lab work, convert the given lengths from the derived units to meters for calculations, converting compound si units for physics.

Medical and Pharmaceutical

Convert mg to international units, convert milligrams to international units, and convert micrograms to international units for accurate medication dosing.

Construction and DIY

Convert feet to meters for building plans, square feet to square meters for area, liters to gallons for paint.

Tips for Accurate Conversions

Use Proper Precision

Our converter provides appropriate decimal precision for each conversion type. Scientific conversions may need more precision than everyday use.

Check Unit Categories

Ensure you're converting within same category—length to length, weight to weight. Can't convert liters to kilograms without density.

Understand Context

Some conversions (like convert mg to international units) depend on specific substances. Always verify for medical/pharmaceutical applications.

Keep Reference Charts

Bookmark our chart to convert metric units and chart for converting metric units for quick reference.

Common Questions About Unit Converter

Is the Unit Converter Free?

Yes! Completely free with unlimited conversions. No subscriptions or hidden costs—convert as many units as needed.

What Units Can I Convert?

Length (meters, feet, miles), weight (kg, pounds, mg), temperature (Celsius, Fahrenheit, Kelvin), volume (liters, ml, gallons), area, speed, and time.

How Do I Convert Units to mL?

Select volume category, enter value, choose your unit (cups, ounces, liters), select mL as target unit. Instant conversion!

Can I Convert mg to International Units?

IU conversions depend on specific substances. Use our converter for general mg/g conversions, but consult medical references for mg to IU conversions.

Does It Have a Metric Conversion Chart?

Yes! Our tool serves as both chart to convert metric units and chart for converting metric units with instant calculations.

Can It Convert Compound SI Units?

Yes! Our converter handles converting compound si units like speed (m/s to km/h), density (g/cm³ to kg/m³), and more.

Start Converting Units Today

Ready for instant, accurate conversions? Whether you need a chart to convert metric units for reference, want to convert the given lengths from the derived units to meters for science, need a chart for converting metric units for study, want to convert units to ml for cooking, need to convert mg to international units for medication, or are converting compound si units for engineering—ToolSparx has you covered.

Don't struggle with manual calculations or outdated conversion charts. Our Smart Unit Converter provides instant, accurate results for all measurement conversions. From convert milligrams to international units to convert micrograms to international units—get precise conversions in one click.

Join thousands who trust ToolSparx for unit conversions in work, study, travel, and daily life. Start using our Free Unit Converter today and make measurements easy!