BODY INTELLIGENCE · PRIVACY FIRST

Your body,
translated into useful numbers.

Simple + advancedClinical safeguardsLocal-only data

Estimate body fat, lean mass, metabolism and activity through one clear flow. Everything happens in your browser, with no account and no measurements sent anywhere.

Calculate your overview See the methodABOUT 3 MIN · NO ACCOUNT

01 Local processing02 Public sources03 Diabetes safeguards

THEIMETRA / BODY MODEL LIVE

BODY ESTIMATE18.4%Body fat

ENERGY1,742resting kcal

ACTIVITY6.8 METEstimated intensity

HOW TO MEASURE

Keep the tape level after a natural exhale, without compressing the skin.

Composition

Body fat and lean mass from body circumferences.

Energy

Metabolism, maintenance and goal estimates with explicit limits.

Activity

Sport, intensity, distance, steps and muscle groups.

01 Measure02 Describe03 Review

01 — YOUR PROFILE

Start with repeatable measurements

No result is a diagnosis. Use recent measurements and take each one twice.

REQUIRED DATA0%

Activities are optional and are added separately.

Same conditions

Measure at roughly the same time, preferably before eating and after using the bathroom.

Level tape

Keep it snug without compressing the skin, and breathe normally.

Two readings

Repeat each circumference; if the readings differ substantially, take a third.

MEASUREMENT DEPTH

Choose speed or repeatability

Advanced mode improves the input by averaging repeated readings. It does not turn a circumference equation into a medical scan.

AgeThis calculator is designed for adults.Physiological input for the equationsUsed by the Mifflin–St Jeor and circumference methods.Height (cm)Weight (kg)Waist (cm)Midpoint between the last palpable rib and the top of the hip, after a natural exhale.Neck (cm)Keep the tape flat and snug without compressing the skin.

02 — ACTIVITY & SPORT

Build your real week

Add each activity separately. For running, walking and cycling you can enter distance, steps and time; strength training also records muscle groups and declared training volume.

Weekly estimate—Add your first activity

Sport / activityIntensityWhen you enter distance and time, intensity is also estimated from speed.Session duration (min)Sessions per weekDistance (km)Optional: used to calculate speed and pace.StepsOptional: we show cadence without inventing your stride length.

No activities added. The calculation will use only the daily movement selected below.

Calories are adult MET estimates and can vary substantially with technique, gradient, rest periods, efficiency and individual factors. Only the energy above resting level is added to daily needs to reduce double counting.

HOW IT WORKS

Every number shows its limits

Composition

A circumference method provides a rough estimate of body fat and lean mass. Hydration, technique and fat distribution can alter it.

Energy & activity

Mifflin–St Jeor estimates resting needs, while METs estimate individual activities. Net extra energy is averaged across the week to reduce double counting.

Conditions & meals

Selected conditions activate adaptations or disable higher-risk calculations. The model does not prescribe medication, supplements, sodium, fluids or therapeutic carbohydrate amounts.

FREQUENTLY ASKED QUESTIONS

Before you trust a number

The most important answers about how THEIMETRA works and where its limits lie.

How accurate is the body-fat percentage?+

It is a circumference-based estimate, most useful for following a trend. Technique, hydration and fat distribution can change the result.

Why are calories shown as an estimate?+

The equations describe a statistical average. Real needs are calibrated by observing weight, hunger, energy and performance for at least two or three weeks.

Is my data saved?+

No. Values stay in the page’s temporary memory and disappear when you close or reload it. Do not send measurements or health data to the contact address.

Can I use it if I have diabetes?+

You can receive general information with added safeguards, but medication, insulin and therapeutic carbohydrate amounts must be managed with your healthcare team.

What happens when I select a condition?+

Higher-risk conditions make calorie, macronutrient or body-composition estimates unavailable when weight and formulas may be misleading. Other conditions display documented cautions only; the site never diagnoses disease.

BEFORE CHANGING YOUR DIET

Get professional help when nutrition interacts with treatment.

Contact your healthcare team promptly for frequent hypoglycaemia, very high glucose, ketones, unintentional weight loss, persistent vomiting, sudden swelling, shortness of breath, confusion, vomiting blood or black stools. In an emergency, call your local emergency services.

Medication, insulin, sodium, fluids, therapeutic protein intake and supplements must be defined with professionals who know your diagnosis, tests and treatment.

PRIVACY & TERMS

Clear information, minimal data

Temporary memory only

Your entries stay in the page’s memory. THEIMETRA adds no accounts, database, analytics, profiling cookies or tracking. The hosting and payment providers may process technical or transaction data under their own policies.

Not healthcare

An informational tool for adults. It does not diagnose, prescribe or create therapeutic diets. Medical conditions, pregnancy, eating disorders or treatment require a qualified professional.

No registration

The calculator is free to access and requires no account, payment or submission of your measurements. Results disappear when the page is reloaded or closed.

IMPORTANT DISCLAIMER

Educational estimates, not personalised clinical advice.

THEIMETRA is designed solely as an informational tool for adults. Results depend on the data entered, statistical equations and MET estimates. They may be inaccurate and do not constitute a diagnosis, prescription, treatment, medical certification or therapeutic diet.

Do not change medication, insulin, calorie intake or therapeutic carbohydrate amounts solely because of a result.
Diabetes, pregnancy, kidney disease, eating disorders, symptoms or clinical goals require a doctor or registered dietitian.
For severe symptoms or an emergency, contact your local emergency services immediately.

To the maximum extent permitted by applicable law, the service is not liable for health or dietary decisions made in sole reliance on automated estimates. Nothing here excludes liability that cannot legally be excluded or limits mandatory consumer rights.

Your body,translated into useful numbers.