Conversion Calculator: One Tool for Every Unit

Convert length, weight, temperature, and more with instant accuracy.

Whether you are following a British recipe in an American kitchen, calculating fuel efficiency for a cross-border road trip, or measuring furniture in centimeters vs. inches, our Conversion Calculator is your go-to resource. We provide precise, real-time conversions across all major units to help you navigate a world of different measurement standards.

Universal Converter

Convert between Metric and Imperial units instantly

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Formula Used:
Select units to see the mathematical relationship.

Imperial vs. Metric: Understanding the Difference

On familyhealthcalc.com, we help you navigate the two primary systems used in the US, UK, and Canada:

1. The Metric System (SI)

Used by the vast majority of the world and in scientific communities. It is base-10, making it easy to scale (e.g., 100cm = 1 meter).

  • Primary Units: Meters, Grams, Liters, Celsius.

2. The Imperial & US Customary Systems

While the US primarily uses Customary units, the UK uses a unique mix (Imperial). For example, a person’s weight in London is often measured in Stone, while in New York, it’s strictly Pounds.

  • Primary Units: Inches, Pounds, Gallons, Fahrenheit.

Practical Conversion Examples

  • International Cooking: Convert a recipe’s “200°C” oven temperature to 392°F or “500ml” of milk to roughly 2 cups.
  • Construction & DIY: Quickly find out that 12 millimeters is approximately 1/2 inch when selecting the right drill bit or screw.
  • Travel & Speed: When driving in Canada or Europe, realize that a 100 km/h speed limit is about 62 mph.
  • Health & Fitness: Convert your height from 5’10” to 178 cm for medical forms or gym equipment settings.