Calorie Deficit Calculator
Plan a safe daily deficit to hit your weight loss goal on time.
See how it works
Watch a quick simulation of this tool in action — no file needed.
How to use Calorie Deficit Calculator
Follow these steps — everything happens instantly in your browser.
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Step 1. Enter your TDEE (maintenance calories).
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Step 2. Enter your target weight loss (in kg or lb).
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Step 3. Pick the unit and the timeframe in days.
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Step 4. Read your daily calorie target and check the safety warnings.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about calorie deficit calculator.
Calorie Calculator
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Macro Calculator
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Ideal Weight Calculator
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