Unit Converter

Convert between units of length, weight, volume, temperature, area, speed, and more.

How to Use This Calculator

Select a category (length, weight, temperature, volume, area, or speed)
Enter the value you want to convert
Choose the unit you're converting from
Choose the unit you're converting to
Click 'Convert' to see the result
Use the swap button to quickly reverse the conversion

Formula

Converted Value = Input Value × (From Unit to Base) ÷ (To Unit to Base)

Frequently Asked Questions

How does unit conversion work?▼

The converter first converts your input value to a base unit (e.g., meters for length), then converts from that base unit to your target unit. This ensures accurate conversions between any two units in a category.

What categories of units can I convert?▼

The converter supports 6 categories: Length (meters, feet, miles, etc.), Weight (kg, pounds, ounces), Temperature (Celsius, Fahrenheit, Kelvin), Volume (liters, gallons, cups), Area (square meters, acres), and Speed (m/s, mph, km/h).

Why is temperature conversion different?▼

Temperature uses formulas rather than simple multiplication because the scales have different zero points. For example, °F = (°C × 9/5) + 32. The calculator handles this automatically.

Can I swap the from and to units?▼

Yes! Click the swap button (⇄) between the unit dropdowns to instantly switch the from and to units along with their values.