Top 20 Most Common Unit Conversions People Search For

Every day, millions of people search online for unit conversions. From students working on homework to travelers abroad and DIY enthusiasts at home, conversions are part of daily life. But which ones are searched for the most? We’ve rounded up the top 20 most common unit conversions, complete with quick explanations and direct links to our free converter tools.

1. Centimeters to Inches

Used in fashion, furniture, and schoolwork. Convert cm to inches

2. Inches to Centimeters

The reverse conversion is just as popular. Convert inches to cm

3. Kilograms to Pounds

Essential for fitness and travel luggage. Convert kg to lbs

4. Pounds to Kilograms

Popular among international travelers and athletes. Convert lbs to kg

5. Celsius to Fahrenheit

Weather forecasts often require this. Convert °C to °F

6. Fahrenheit to Celsius

The opposite is equally important. Convert °F to °C

7. Liters to Gallons

Especially relevant when comparing US and UK gallons. Convert liters to gallons

8. Gallons to Liters

Common when buying fuel internationally. Convert gallons to liters

9. Miles to Kilometers

Travel and running enthusiasts search this daily. Convert miles to km

10. Kilometers to Miles

Road trips and maps require this. Convert km to miles

11. Feet to Meters

Important in construction and sports. Convert feet to meters

12. Meters to Feet

Essential in real estate and DIY. Convert meters to feet

13. Square Feet to Square Meters

Homebuyers and architects search this often. Convert sqft to sqm

14. Grams to Ounces

Common in cooking and baking. Convert grams to ounces

15. Ounces to Grams

Reverse conversion for recipes and nutrition. Convert ounces to grams

16. Cups to Milliliters

Baking recipes often mix US cups with ml. Convert cups to ml

17. Milliliters to Cups

Handy for adapting international recipes. Convert ml to cups

18. MPH to KPH

Drivers switching between US and international roads need this. Convert mph to kph

19. KPH to MPH

Travelers in the US often need the reverse. Convert kph to mph

20. Inches to Millimeters

Precision work like engineering and jewelry uses this. Convert inches to mm

Conclusion

These 20 conversions represent the most common unit-related questions worldwide. From cooking and travel to construction and science, people need fast, accurate answers. That’s why our free converters are designed to give instant, reliable results. Bookmark your favorites, and you’ll never be stuck wondering how many kilometers are in a mile or how many ounces are in a gram again.