How to Create a Sustainable Calorie Deficit
The most effective approach combines a moderate diet deficit (250–500 cal/day) with increased activity (250–500 cal/day) to reach a total 500–1,000 cal/day deficit without cutting food too aggressively. High protein intake (1.8–2.4 g/kg) during a deficit preserves muscle mass. Spreading meals across 4–5 sittings maintains satiety. Weekly diet breaks at maintenance help reset hormones and prevent metabolic adaptation. Source: ACSM 2023; Helms ER et al. 2014.
BMR: 1,850 cal | TDEE: 1,850 × 1.55 = 2,867 cal/day
Deficit for 0.5 kg/week: −500 cal | Target: 2,367 cal/day
Complete Guide to Using This Calculator
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Step-by-Step Instructions
- Enter your values in the fields above using real numbers, not estimates where precision matters.
- Select any dropdown options that apply to your specific situation.
- Click Calculate to get instant results with a complete numerical breakdown.
- Read the full breakdown table — every row provides additional context beyond the headline number.
- Run multiple scenarios — change one input at a time to understand sensitivity.
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The headline result answers your immediate question. The breakdown table below it provides related values, intermediate steps, and contextual comparisons that often matter as much as the headline number. Read both before drawing conclusions. For planning purposes, run the calculation under optimistic, expected, and pessimistic input assumptions to understand the range of possible outcomes.
Accuracy and Limitations
This calculator performs arithmetic with precision to 15 significant figures — far beyond practical requirements. The limiting factor is always your input accuracy. If inputs are estimates, outputs are estimates. For safety-critical or high-stakes professional applications, always verify results with qualified professionals using certified calculation tools.
Frequently Asked Questions
Formula sourced from: Reserve Bank of India • EPFO • Income Tax Dept India • SEBI • IRS (USA)
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