Calculate the necessary calorie deficit based on weight loss speed and daily calorie target.
The calorie deficit calculator calculates how many calories to eat on a weight loss diet and estimates the weekly and monthly weight loss speed. A safe calorie deficit is 300–500 kcal per day.
The calculator is free, works in the browser without registration. The site offers over 200 calculators.
Weight Loss Calorie Limit = TDEE − Calorie Deficit. Weight Loss/week (kg) = Calorie Deficit × 7 ÷ 7700.
Enter the information in the calculator fields – the result updates immediately. You can try different values to compare scenarios.
TDEE 2,400 kcal, calorie deficit 500 kcal/day → eat 1,900 kcal/day → weight loss 0.45 kg/week, 1.8 kg/month.
This example illustrates a typical situation. Enter your own information to get a personalized result.
The calculator serves individuals, entrepreneurs, students, and professionals. All calculators on the site are free and no registration is required.
The results are indicative – official decisions are always made based on calculations by professionals.
Calculate the required calorie deficit based on weight loss rate and daily calorie target. Fill in the requested information in the form, and the calorie deficit calculator will show the result immediately.
Yes, the calorie deficit calculator is completely free and does not require registration. All FiksuLaskuri health calculators are free of charge.
No. The calculations are done entirely in your browser and the data you enter is not sent or stored on the server.
No. The calorie deficit calculator is a rough guide, not a medical diagnosis. For health-related decisions, it is advisable to consult a healthcare professional.
Yes – at the bottom of the page, you can see other calculators related to the same topic that may also interest you.