We live in a world divided by measurement systems. Whether you're baking a cake using a US recipe, buying land in acres, or checking the temperature abroad, unit conversion is an essential skill. This guide covers the most critical conversions you'll need.
[Image of Metric vs Imperial Units]1. Length: Metric vs. Imperial
Length is perhaps the most confusing category because different industries use different standards. Here are the "Golden Rules" of length conversion:
1 Meter = 3.28 Feet (Approx)
1 Mile = 1.609 Kilometers
1 Kilometer = 0.62 Miles
Pro Tip: To quickly convert Kilometers to Miles mentally, divide by 2 and add 10% (e.g., 100km / 2 = 50 + 5 = 55 miles. Actual is 62, but it's a close estimate!).
2. Weight: Pounds to Kilograms
Gym-goers and travelers deal with this constantly. The magic number is 2.2.
1 Pound = 453.59 Grams
1 Stone = 14 Pounds (Common in UK)
3. Volume: The Kitchen Nightmare
Cooking is where conversions get messy because "Cups" vary by country (US vs. Metric vs. Imperial Cup).
- 1 US Cup = ~240 ml
- 1 Metric Cup = 250 ml
- 1 Gallon (US) = 3.785 Liters
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Open Unit Converter4. Temperature: °C to °F
This is the trickiest because it's not a simple multiplication. You need to subtract/add 32.
°C to °F: (°C × 9/5) + 32
Quick Estimate: To go from °C to °F, multiply by 2 and add 30. (e.g., 20°C × 2 = 40 + 30 = 70°F. Actual is 68°F).