BMI calculator
Body mass index from height and weight.
Open toolLibrary
Health tools
Health calculators and utilities on Netra Code.
BMR calculator
Mifflin–St Jeor basal metabolic rate.
Open toolTDEE calculator
Daily energy use from BMR and activity.
Open toolUS Navy body fat
Circumference estimate (not a diagnosis).
Open toolIdeal weight (Devine)
Devine formula estimate.
Open toolWaist-to-hip ratio
Waist divided by hip.
Open toolMax heart rate
220 minus age (estimate).
Open toolHeart rate zones
Five training zones from max HR.
Open toolOne-rep max
Epley estimate from a submaximal set.
Open toolProtein intake
Grams per kg of body weight.
Open toolWater intake
Rough daily fluid target.
Open toolCalorie deficit
Weekly loss estimate from a daily deficit.
Open toolMacro split
Protein / carbs / fat from calories.
Open toolDue date
Naegele: LMP plus 280 days.
Open toolOvulation window
Estimate from cycle length.
Open toolSleep cycles
Wake times in 90-minute cycles.
Open toolCaffeine remaining
5-hour half-life estimate.
Open toolSteps to calories
Rough burn from steps and weight.
Open toolRunning pace
Pace from distance and time.
Open toolLean body mass
Boer formula estimate.
Open toolMean arterial pressure
MAP from systolic and diastolic.
Open toolPulse pressure
Systolic minus diastolic.
Open toolBlood pressure category
AHA adult categories (not a diagnosis).
Open toolGlucose mg/dL ↔ mmol/L
Divide or multiply by 18.
Open toolIdeal weight (Robinson)
Robinson height-weight estimate.
Open toolKatch–McArdle BMR
BMR from lean mass.
Open toolFasting window
Eating window leftover in 24h.
Open toolUK alcohol units
Units from volume and ABV.
Open toolSmoking cost
Yearly spend from packs and price.
Open toolBMI Prime
BMI divided by 25.
Open toolWaist-to-height ratio
Waist divided by height.
Open toolVO2 max (Uth)
Simple HR-based estimate.
Open toolPace to speed
km/h from min/km.
Open toolRunning calories
MET-style estimate.
Open toolTarget HR (Karvonen)
Training HR from rest and max.
Open tool