TDEE & calorie calculator
Daily calorie estimate via Mifflin-St Jeor. Maintenance and rough ±500 kcal cuts.
Runs in this tab. The file stays here.
Maintenance (TDEE)
2556
kcal / day · BMR 1649
~1 lb/week loss*
2056
~1 lb/week gain*
3056
*±500 kcal/day is a rough estimate, not a prescription. Mifflin-St Jeor.
This runs in your browser. Nothing is uploaded.
About TDEE & calorie calculator
Estimate daily calories with Mifflin-St Jeor BMR and activity multipliers, plus rough ±500 kcal guidance.
This tdee calculator stays in the tab. Nothing is uploaded to ihateonlinetools.com for the calculation. That is the same offline promise as the rest of the site: your numbers, caption, or recipe never need to sit in a third-party form log.
BMR uses Mifflin-St Jeor: 10×weight(kg) + 6.25×height(cm) − 5×age, then +5 for male or −161 for female. TDEE multiplies BMR by the activity factor you select from sedentary through very active.
The page also shows maintenance minus and plus 500 kcal as a rough one-pound-per-week estimate. Those figures are labelled estimates, not prescriptions. This is screening math, not a clinic visit. Related tools on this site cover nearby jobs without forcing a signup wall.
How to use TDEE & calorie calculator
- 1Open /health/tdee-calculator/ and check the side-panel defaults.
- 2Enter your values or paste your list; the main pane updates.
- 3Copy the result if you need it elsewhere. Closing the tab clears local state unless noted.
What it won't do
- Not professional advice and not a hosted account product.
- Garbage in, garbage out: wrong inputs yield wrong outputs.
Common questions
Does tdee calculator upload anything?
No. Inputs and outputs stay in the browser process. Sharing features that exist, such as countdown links, only put values you choose into the URL on your device.
What formula or method does tdee calculator use?
BMR uses Mifflin-St Jeor: 10×weight(kg) + 6.25×height(cm) − 5×age, then +5 for male or −161 for female. TDEE multiplies BMR by the activity factor you select from sedentary through very active.
When should I not rely on tdee calculator alone?
When a clinician, building code, platform policy, or teacher requires a signed process. This page is a calculator and explainer, not a certificate.
Is tdee calculator free and offline-capable?
Yes. After the static page loads, the logic runs without calling an external compute API. Return visits may use the service worker cache for the shell.
Related tools
- Body fat % calculatorUS Navy circumference estimate from tape measurements. Not a DEXA scan.
- Ideal weight calculatorShows a range across Devine, Robinson, Miller, and Hamwi—not one false precision.
- Water intake calculatorRough daily litres from weight, plus exercise add-on. A guideline, not a medical target.
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation