The code

Paste this wherever you want the calculator to appear:

<iframe src="https://nononsensefitness.ie/embed/macro-calculator"
        width="100%" height="620" style="border:1px solid #e3e7e8;border-radius:12px"
        title="Free macro calculator by No Nonsense Fitness" loading="lazy"></iframe>

It's responsive, works on mobile, and needs no JavaScript on your end.

What your readers get

Age, height, weight, activity level and goal in, and a daily calorie target with protein, carb and fat grams out. Same Mifflin-St Jeor formula and the same goal presets as our own macro calculator, so the numbers never disagree.

Live preview

The rules, such as they are

Want a different tool?

If a TDEE, body-fat or protein calculator would suit your readers better, say the word and we'll build an embed for it. The rest of the free tools are on the free tools page.

General information, not medical advice. This page is general fitness and nutrition education, not personalised or medical advice. Nothing here is intended to diagnose, treat, cure, or prevent any disease. If you have a health condition, are pregnant or breastfeeding, or are on medication, talk to a healthcare professional before making big changes to how you eat or train.

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