The Ultimate Unit Conversion Cheatsheet: Metric, Imperial, and Beyond

We've all been there: you're in the middle of a perfect recipe and it asks for "100 grams of flour," but your scale only shows ounces. Or you're driving in a new country and the speed limit is "80 km/h." Understanding the relationship between different units is a core survival skill in our globalized world. In this guide, we provide a handy unit conversion cheatsheet and show you how to use technology to never do mental math again.

Common Kitchen Conversions

Cooking is a science, and precision matters. A wrong conversion can be the difference between a fluffy cake and a brick.

• 1 Cup: ~236 milliliters (ml)
• 1 Ounce (oz): ~28.3 grams (g)
• 1 Pound (lb): 453.5 grams (g)

Travel & Speed: Miles vs. KM

If you're used to miles but find yourself in a metric country (which is almost every country except the US), remember the 1.6 rule. 1 mile is approximately 1.6 kilometers. Conversely, 1 kilometer is about 0.62 miles. To avoid errors during your road trip, use our Instant Unit Converter to get exact decimal-perfect results on your phone.

Temperature: The Celsius-Fahrenheit Gap

The gap between 0°C (Freezing) and 32°F (Freezing) is one of the most confusing for travelers. A simple trick for Celsius to Fahrenheit is to multiply by 2 and add 30. It isn't perfect, but it gets you close enough to know what to wear!