Health & Fitness · Free tool
Calories Per Macro Estimator
Total kcal from protein/carbs/fat/fiber plus percent breakdown — catches low-protein diets instantly.
Updated April 2026
Total calories
425 kcal
Uses 4·4·9 kcal/g plus 2 kcal/g for fiber (net carbs)
Breakdown
Protein120 kcal · 28.2%
Net carbs160 kcal · 37.6%
Fat135 kcal · 31.8%
Fiber10 kcal · 2.4%
Not medical advice — consult a provider or dietitian for individualized nutrition plans.
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What it does
Totals and percentages for any macro split — protein flag built in.
Runs entirely in your browser — no upload, no account, no watermark. For more tools in this category see the full tools index.
How to use it
- Enter grams of each macro.
- Read kcal and split %.
- Adjust until balanced.
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