Fast, simple unit converters

Why use our unit converters?

Unit conversions appear in almost every part of daily life. A student may need to convert inches to centimeters for a math assignment. A traveler driving abroad must compare kilometers per hour to miles per hour. A cook following an American recipe might need to change ounces to grams. Instead of guessing or searching for charts, our converters provide instant, clear, and accurate answers.

Each page is lightweight and loads fast on desktop or mobile. Results appear immediately as you type. Along with the result, we also display the formula, step-by-step calculation, and examples. This makes Converter for not only quick but also educational and reliable.

Popular unit converters

• MPH to KPH converter — quickly switch between miles per hour and kilometers per hour, perfect for drivers and travelers.
• KPH to MPH converter — compare international speed limits with U.S. values.
• KG to LB converter — useful for fitness tracking, recipes, and baggage checks.
• LB to KG converter — convert body weight, shipments, or sports data into metric units.

All categories

• Converter for speed

  Convert miles per hour, kilometers per hour, meters per second, knots, and feet per second. Ideal for drivers, sailors, and physics students.

  MPH→KPH · KPH→MPH · Knots→MPH

• Converter for weight

  Change kilograms, pounds, grams, and ounces. Handy for cooking, baggage allowances, fitness, and science projects.

  KG→LB · LB→KG · g→oz

• Converter for length

  Switch between meters, centimeters, millimeters, kilometers, inches, feet, yards, and miles. Great for homework, DIY, and travel planning.

  ft→m · m→ft · in→cm

• Converter for temperature

  Convert Celsius, Fahrenheit, and Kelvin. Useful for cooking, weather checks, and science experiments.

  °C→°F · °F→°C · °C→K

• Converter for volume

  Convert liters, milliliters, gallons, quarts, pints, and fluid ounces. Perfect for recipes, chemistry, and beverage measurements.

  L→gal · gal→L · mL→oz

• Converter for area

  Change square meters, square feet, acres, and hectares. Great for construction, gardening, land measurement, and real estate.

  m²→ft² · ft²→m² · ac→m²

• Converter for time

  Convert milliseconds, seconds, minutes, hours, and days. Useful for schedules, coding timers, sports, and project planning.

  ms→s · min→s · h→min

• Converter for data

  Convert bits, bytes, kilobytes, megabytes, and gigabytes. Essential for checking storage, networking, and computing tasks.

  MB→GB · GB→MB · B→KB

Accuracy & how we calculate

Examples of everyday use

• Traveling abroad? Use the KPH to MPH converter to understand speed limits.
• Cooking with foreign recipes? Convert ounces to grams or milliliters to ounces.
• Doing homework? Switch feet to meters or square feet to square meters.
• Working on science? Convert Celsius to Kelvin or minutes to seconds.
• Managing files? Quickly check MB to GB for storage or downloads.