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YUTHI Calculators

Longevity in numbers.

Fifteen small tools, big clarity. Quick self-checks for the most important markers around nutrition, sport and lifestyle – free, anonymous, no sign-up.

Nutrition

Body composition, energy, macros & micros

01

BMI calculator

Body mass index to WHO standard with classification.

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02

Calorie needs

Basal and total energy expenditure by Mifflin-St Jeor.

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03

Macronutrients

Protein, fat, carbohydrates by goal.

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04

Water needs

Recommended daily fluid intake including activity.

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05

Protein needs (longevity)

Higher recommendation from midlife onwards (1.2–1.6 g/kg).

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06

Intermittent fasting window

14:10, 16:8, 18:6, 20:4 or OMAD – plan your eating window.

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07

Body fat (Navy)

Estimate via circumference measurements, no caliper.

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Sport & movement

Endurance, strength, heart-rate zones, longevity markers

08

VO2max estimator

Cooper or UKK 2 km walk test – one of the strongest mortality predictors.

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09

Maximum heart rate

Tanaka formula: more precise than “220 minus age”.

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10

Training zones (5 zones)

From HRmax or the Karvonen formula – for targeted endurance training.

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11

Pace calculator

Pace, time, distance – convert flexibly, including a table for 5 km – marathon.

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12

1RM (maximal strength)

Epley formula: estimate your max from repetitions.

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13

Zone 2 heart rate

The training sweet spot of the longevity community.

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14

Sitting-time risk

How much does your sitting time affect you – and how much movement offsets it?

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In the app

Your overall longevity status — daily, from everything you log.

15 · In the app

YUTHI Longevity-Score

In the app, movement, sleep, nutrition, hydration and recovery form your Longevity Circle every day — and a level that grows with your habits.

In the app