Weight Loss Calorie Calculator
Find the daily calorie deficit needed to reach a goal.
How it works
Fill in the 2 fields above and Weight Loss Calorie Calculator calculates the result instantly, recalculating as you change any value. The math runs locally in your browser — nothing is sent to a server.
Examples
- Weight to lose 5 kg, Over weeks 10 → Daily deficit needed: 550 kcal
Frequently asked questions
How do I use the Weight Loss Calorie Calculator?
Enter your values in the 2 input fields and the result is calculated automatically as you type. Change any value to see the numbers update instantly.
Is my data private?
Yes. The Weight Loss Calorie Calculator runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Weight Loss Calorie Calculator free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on health & fitness and the rest of the platform, you can use it as often as you like.
Popular in Health & Fitness
One Rep Max Calculator
Estimate your 1RM from weight and reps (Epley formula).
Target Heart Rate Calculator
Find your training heart-rate zones from your age.
Pregnancy Due Date Calculator
Estimate your due date from the first day of your last period.
Lean Body Mass Calculator
Estimate lean body mass using the Boer formula.