Limited launch — FREE Lifetime Account ($67 value)
RealBurn™
2,585
▲ +175 kcal/day vs. your calculator estimate
Static calc
2,410
RealBurn™
2,585
Updated
Today
Measured, not guessed
Built from your intake plus your RealWeight™ slope.
Adapts with you
When your metabolism shifts, your number shifts too.
Outlier-proof
7-day medians keep one weird day from wrecking it.
RealBurn™ — the adaptive TDEE and expenditure calculator that measures your metabolism
Online calorie calculators guess. RealBurn™ measures what your body actually burns each day from your real food logs and your RealWeight™ trend — and updates as your metabolism adapts.
No credit card · 60 seconds
The problem
Why static calorie calculators fail
A one-time formula can't keep up with a body that changes every week.
Formulas are population averages
Standard TDEE equations can miss your true expenditure by 300–500 calories. You then build an entire plan on that error.
Activity multipliers are a guess
"Moderately active" means something different for everyone. Pick wrong and your deficit is imaginary.
Metabolism adapts, calculators don't
Expenditure shifts during a long cut. A number you calculated in January is wrong by March.
The mechanism
How RealBurn™ measures your true burn rate
- Step 1
Log what you eat
Intake comes straight from your daily food logs — photo, voice or text. No spreadsheets required.
- Step 2
Compare it to your trend line
Energy in minus tissue change equals energy out. RealBurn™ solves that equation against your smoothed weight trend, not noisy daily readings.
- Step 3
Targets update automatically
As your measured expenditure moves, your calorie and macro targets move with it, so your deficit stays real week after week.
~7 days
First estimate
Daily
Recalculated
None
Manual math
$0
Cost to start
RealBurn™ is only as good as the two numbers feeding it. Intake comes from the AI Meal Logger, which turns a photo or a sentence into macros in seconds, and tissue change comes from RealWeight™. Put the two sides together and you get RealBalance™.
Frequently asked questions
What is an adaptive TDEE calculator?
Instead of estimating your total daily energy expenditure from a formula, an adaptive calculator measures it from what actually happened: how much you ate and how your weight trend moved. RealBurn™ recalculates it continuously.
Why is my real TDEE different from an online calculator?
Formulas like Mifflin-St Jeor use age, height, weight and a guessed activity multiplier. They can be off by hundreds of calories. RealBurn™ uses your own intake and trend data, so it reflects your body, not an average body.
How long until RealBurn™ is accurate?
You'll see a first estimate within about a week of consistent weigh-ins and meal logs, and it tightens from there as more data comes in.
Does it adjust when my metabolism adapts?
Yes. If expenditure drifts down during a long deficit or up as you get more active, RealBurn™ picks it up and your calorie targets move with it automatically.
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No credit card · Takes 60 seconds