Conversion Calculator

Convert Units

Category

From

To

Value to Convert

Batch Input Use unit symbols (e.g., 'm', 'kg', 'f'). Incompatible or invalid lines will be skipped.

Data Storage System

Decimal Places (0-8)

Rounding Mode Nearest Round Down (Floor) Round Up (Ceil)

Results

Input Value	From	Output Value	To

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What is a Conversion Calculator?

A conversion calculator is a digital tool designed to translate a measurement from one unit to another within the same physical quantity. For instance, it can convert meters to miles (length), kilograms to pounds (mass), or Celsius to Fahrenheit (temperature). This advanced calculator ensures accuracy by using standardized formulas and constants for a wide range of categories.

Common Conversion Formulas

• Temperature: Celsius (°C) to Fahrenheit (°F): °F = (°C × 9/5) + 32. Celsius (°C) to Kelvin (K): K = °C + 273.15.
• Area: 1 Acre = 43,560 square feet. 1 Hectare = 10,000 square meters.
• Volume: 1 US Gallon = 3.78541 Liters. 1 Cubic Meter = 1,000 Liters.
• Speed: 1 mile per hour (mph) ≈ 0.44704 meters per second (m/s).
• Data Storage: SI: 1 Megabyte (MB) = 1,000 Kilobytes (KB). Binary: 1 Mebibyte (MiB) = 1,024 Kibibytes (KiB).

Tips for Accurate Conversions

• Check Precision: Use the "Decimal Places" slider to control how many digits appear after the decimal point in your result.
• Rounding Matters: Select a rounding mode (Nearest, Floor, or Ceil) to ensure the result meets your specific needs, especially for scientific or engineering calculations.
• SI vs. Binary: When converting data storage units, be aware of the context. Use SI (powers of 1000) for networking speeds and storage marketing, and Binary (powers of 1024) for file sizes in most operating systems.

FAQ

1. How do I convert Celsius to Fahrenheit?

To convert Celsius (°C) to Fahrenheit (°F), use the formula: °F = (°C × 9/5) + 32. For example, 20°C is equal to (20 × 1.8) + 32, which is 68°F.

2. What’s the difference between KB and KiB?

KB (Kilobyte) uses the decimal system (SI standard), where 1 KB = 1000 bytes. KiB (Kibibyte) uses the binary system (IEC standard), where 1 KiB = 1024 bytes. The binary system is more commonly used in operating systems to measure file size and memory, while the decimal system is often used by manufacturers to advertise storage capacity.

3. How many meters are in a mile?

There are exactly 1,609.344 meters in one mile. This is the international standard definition.

4. Liters to cubic meters: what’s the factor?

The conversion factor is 1,000. One cubic meter (m³) contains 1,000 liters (L). Therefore, to convert liters to cubic meters, you divide by 1,000. For example, 2,500 L is equal to 2.5 m³.

5. Can I convert time to speed?

No, you cannot convert time directly to speed because they are different physical quantities. Time measures duration, while speed measures distance over time (e.g., meters per second). You can use time and distance values to calculate speed, but they are not directly convertible.

6. How accurate are these conversions?

This calculator uses internationally recognized standard conversion factors and formulas with high precision (at least 9 significant digits internally). The final displayed accuracy depends on the precision setting you choose (0 to 8 decimal places).

7. Why don’t you include currency by default?

Currency exchange rates fluctuate constantly and require a reliable, real-time data source from a third-party API. To ensure the tool is always fast, free, and doesn't rely on external services that could fail or have costs, live currency conversion is not included by default.

8. How is rounding handled?

You can choose from three rounding modes: 'Nearest' (standard rounding to the closest number), 'Floor' (always rounds down), and 'Ceil' (always rounds up). The selected mode is applied to the final result based on the number of decimal places you specify.