Whether you're trying to lose weight, training for a marathon, or just want to see how many calories were in your packed lunch, somewhere on the world wide web there is a calculator for you.

These calculators are quick, handy tools for measuring your health and fitness. But if you're searching for a specific calculator, you can sometimes get a little lost in the Googling. Never fear! The people over at Nursing Colleges and Training Schools have taken the work out of the search. They've compiled a list of 50 online health calculators and broken them into categories: Nutrition, Health and Fitness, Weight Loss, Complete Fitness Programs, Running, and Other Sports Calculators.

AOL Health also has a list of helpful resources. Check them out!

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