Need to check whether your weight sits in a healthy range? The Wivrix Calorie & TDEE Calculator is free, works in your browser, and takes seconds to use.
What this tool does
Find your daily calorie needs, BMR and macro split for losing, maintaining or gaining weight — using the Mifflin-St Jeor equation.
Why use Wivrix?
Many online tools ask you to sign up, add a watermark, or upload your files to a server you cannot see. Wivrix is different:
- Private by design — Everything runs in your browser. Your files and input stay on your device — nothing is uploaded to Wivrix.
- Free — no account, no paywall, no file-size tricks
- Fast — open the page and start working
Step-by-step guide
- Choose metric or imperial units.
- Enter your sex, age, weight and height.
- Pick the activity level that honestly matches your week.
- Read your maintenance calories, plus targets for losing or gaining weight.
Common uses
- Check whether your weight sits in a healthy range
- Estimate daily calories for your goal
Frequently asked questions
Do I need an account?
No. Open the tool and use it straight away.
Is the Calorie & TDEE Calculator really free?
Yes. Wivrix tools are free to use. The site is supported by ads that load only after you consent.
Is my data safe?
Everything runs in your browser. Your files and input stay on your device — nothing is uploaded to Wivrix.
Try it now
Open the free Calorie & TDEE Calculator and follow the steps above. If this guide helped, bookmark the tool or share it with someone who needs the same job done quickly.
Related tools
- BMI & Body Fat Calculator — see also our guide
- Unit Converter — see also our guide
- AI Chat — see also our guide
Ready to try it? Open the free Calorie & TDEE Calculator — no sign-up needed.
Open Calorie & TDEE Calculator →