Unit Converter Tool
Professional unit converter with instant conversions for length, weight, and temperature. Convert between metric and imperial units with precise calculations and real-time results!
📊 Quick Length Conversions
📊 Quick Weight Conversions
📊 Quick Temperature Conversions
How to Use the Unit Converter
Select Category
Choose from Length (meters, feet, miles), Weight (kilograms, pounds, ounces), or Temperature (Celsius, Fahrenheit, Kelvin). Each category offers comprehensive unit options for all your conversion needs.
Choose Units
Select your source unit from the "From" dropdown and target unit from the "To" dropdown. The converter supports both metric and imperial systems with precise conversion formulas for accuracy.
Enter Value
Type your value in the input field. The converter accepts whole numbers, decimals, and negative values (for temperature). Results update instantly as you type with 6-decimal precision.
View Results
See your converted result immediately in the output field and result display. Use the swap button (⇄) to quickly reverse the conversion direction. Check quick conversions for common values.
Frequently Asked Questions
How accurate are the unit conversions?
+Our converter uses precise mathematical formulas with up to 6 decimal places of accuracy. Length and weight conversions use exact conversion factors, while temperature conversions use the standard formulas: °F = (°C × 9/5) + 32, K = °C + 273.15. Results are rounded for display but maintain high precision internally.
What units are supported in each category?
+Length: meters, kilometers, centimeters, millimeters, inches, feet, yards, miles. Weight: kilograms, grams, pounds, ounces, stones, tons. Temperature: Celsius, Fahrenheit, Kelvin. Each category covers the most commonly used units in both metric and imperial systems.
Can I enter decimal values and negative numbers?
+Yes! The converter accepts decimal values (like 1.5, 0.25) and negative numbers, which is especially useful for temperature conversions below freezing. You can enter very large or very small numbers, and the converter will handle them accurately with scientific notation when needed.
What does the swap button (⇄) do?
+The swap button instantly reverses your conversion direction. If you're converting from meters to feet, clicking swap will change it to feet to meters and transfer your input value accordingly. This makes it easy to perform reverse calculations without manually changing the dropdown selections.
Why do some results show many decimal places?
+The converter displays up to 6 decimal places to ensure maximum accuracy, especially for scientific or engineering applications. For everyday use, you can round to fewer decimal places. The high precision ensures that converting back and forth between units maintains accuracy without cumulative rounding errors.