Ideal Body Weight Calculator
Calculate ideal body weight from height and sex with the Devine, Robinson, Miller and Hamwi formulas, plus the healthy BMI range.
Read moreFree tools
Health and Fitness Calculators
Calculators for body composition, energy needs, nutrition, training zones, performance and fitness business pricing.
- 20 items
Heart Rate Zone Calculator
Calculate maximum heart rate and five training zones using heart rate reserve (Karvonen) from age and resting heart rate.
Read moreWater Intake Calculator
Estimate daily water intake from body weight, exercise and climate, as litres and glasses.
Read moreProtein Intake Calculator
Calculate daily protein needs from body weight and goal, with per-meal amounts and the share of calories.
Read moreMacros Calculator
Split a daily calorie target into grams of protein, carbohydrate and fat by percentage, with per-meal amounts.
Read moreCalories Burned Calculator
Estimate calories burned during exercise and daily activities from body weight, duration and the activity's MET value.
Read moreCalorie Deficit Calculator
Calculate the daily calorie target and estimated time to reach a goal weight from maintenance calories and a weekly loss rate.
Read moreCalorie Needs Calculator
Calculate basal metabolic rate with the Mifflin-St Jeor equation and total daily energy expenditure for your activity level.
Read moreBody Fat Calculator
Estimate body fat percentage with the US Navy circumference method from height, neck, waist and hip measurements.
Read moreBMI Calculator
Calculate body mass index from height and weight in metric or imperial units, its adult category and the weight range for a…
Read moreFree strategy session
Let’s build something worth finding.
Tell us where you want the business to be in twelve months. We will come back with a costed plan, a realistic timeline, and the numbers we expect to move — no obligation, no jargon.
- 30-minute call, no pitch deck
- Fixed-price proposal in 48 hours
- You own everything we build
Talk to a developer
Not a sales team
- Response time
- Within 1 business hour
- Where we work
- UK, USA & the Gulf
- Contracts
- No lock-in, monthly rolling
- Working since
- 2023