🔄 Imperial → Metric Conversion
Choose an imperial unit and see the most relevant metric counterparts.
A handy quick-reference when translating recipes, build instructions, or travel documents into metric units.
How to Use This Calculator
Choose an imperial unit
Pick inches, pounds, gallons, Fahrenheit, or other supported units.
Enter the value
Provide the measurement you want to convert.
Read metric equivalents
The converter lists the most relevant metric units instantly.
Formula
Length factors: 1 in = 2.54 cm, 1 ft = 0.3048 m, 1 yd = 0.9144 m, 1 mi = 1.60934 km
Mass factors: 1 lb = 0.45359237 kg, 1 oz = 28.349523125 g
Volume factors: 1 cup = 236.588 mL, 1 pt = 473.176 mL, 1 qt = 946.353 mL, 1 gal = 3.78541 L
Temperature: °C = (°F − 32) × 5/9, K = °C + 273.15
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Whether you’re following a recipe, analyzing product specs, or studying abroad, this tool bridges imperial measurements to their metric counterparts. Select the imperial unit and type a value to see the metric conversions that matter most.
All conversions use internationally recognized factors, ensuring the results are suitable for professional documentation.
For more detailed conversions (such as grain-to-milliliter or gallons-to-tons) explore the specialized calculators in this collection.
Frequently Asked Questions
Can I convert multiple units at once?
This tool converts one measurement at a time. Use other calculators here if you need batch conversions or complex scenarios.
Does it support Imperial (UK) units?
Volume conversions use U.S. customary units. Convert Imperial values to U.S. equivalents before using, or adjust the factors.
Are results rounded?
Results display with sensible precision. Copying them preserves the shown decimals for accurate reporting.
What about reverse conversions?
Use the dedicated metric-to-imperial calculators such as the foot or inch converter for reverse directions.