BMI Calculator
Calculate your Body Mass Index and understand what the number means.
USE CALCULATOR →FITNS.ARC / FREE TOOLS
Free calculators designed to help you understand your body, nutrition, training and performance.
01 / NUTRITION & FAT LOSS
Get a better starting point for your nutrition, energy needs and body composition.
Calculate your Body Mass Index and understand what the number means.
USE CALCULATOR →Estimate your BMR, maintenance calories and calorie target based on your goal.
USE CALCULATOR →Estimate your daily protein requirement based on your weight, goal and training.
USE CALCULATOR →02 / STRENGTH & TRAINING
Understand your training performance and track how your strength develops over time.
Estimate your one-rep max and calculate useful training weights.
USE CALCULATOR →Calculate sets × reps × load and track your total training volume.
USE CALCULATOR →Compare previous and current performance and see your estimated strength improvement.
USE CALCULATOR →03 / RUNNING & ENDURANCE
Understand your pace, training intensity and potential race performance.
Calculate your pace, speed and equivalent race times.
USE CALCULATOR →Have a target race time? Find the pace you need to achieve it.
USE CALCULATOR →Estimate your easy, long-run, tempo, threshold and interval paces.
USE CALCULATOR →Predict equivalent 5K, 10K, half marathon and marathon performances.
USE CALCULATOR →NUMBERS ARE ONLY THE START
Whether your goal is fat loss, strength, running a marathon or completing an Ironman, FitNS.Arc builds your training and nutrition around you.