Tools
Premium fitness tools, ready for race day.
Science-backed calculators for every training goal.
Running Pace Calculator
Calculate your running pace, speed, and finish time for any distance.
Running Splits Calculator
Generate per-kilometre and per-mile split times for your target race pace.
Split Calculator
Calculate even or negative splits for any race distance and goal time.
Interval Calculator
Calculate interval times, rest periods, and total workout duration for structured training.
VDOT Calculator
Estimate your VDOT score and training pace zones from a recent race time.
Race Time Predictor
Predict your finish time for any race distance using a recent performance and the Riegel formula.
VO2 Max Calculator
Estimate your VO2 max and aerobic fitness category from a timed running distance.
Rowing Calories Calculator
Estimate calories burned during rowing based on weight, duration, and intensity.
Swimming Calories Calculator
Estimate calories burned swimming based on stroke, weight, and duration.
Treadmill Calorie Calculator
Estimate calories burned on the treadmill using speed, incline, weight, and duration.
Walking Calorie Calculator
Estimate calories burned walking based on your weight, pace, and distance.
Running Calories Burned Calculator
Estimate total calories burned running based on weight, distance, and pace.
Bike Calorie Calculator
Estimate calories burned cycling based on weight, duration, and effort level.
Steps to Calories Calculator
Convert daily step count into estimated calories burned based on your weight.
Body Fat Calculator
Estimate your body fat percentage using the US Navy tape measurement method.
Lean Body Mass Calculator
Calculate your lean body mass using the Boer formula from weight and height.
BMI Calculator
Calculate your Body Mass Index from weight and height with health classification.
Ideal Weight Calculator
Find your ideal weight range using Devine, Hamwi, Robinson, and Miller formulas.
Waist-to-Height Ratio Calculator
Calculate your waist-to-height ratio and assess cardiovascular health risk.
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and determine health risk classification.
Body Measurement Calculator
Estimate body composition from girth measurements using established formulas.
Body Recomposition Calculator
Project changes to fat mass and lean mass over time with a recomposition plan.
Barbell Calculator
Calculate the weight plates needed on each side of a barbell for any target load.
Plate Weight Calculator
Find the exact plate combination needed to load a barbell to your target weight.
Powerlifting Calculator
Calculate your Wilks, DOTS, and IPF GL scores to compare strength across weight classes.
1 Rep Max Calculator
Estimate your one-rep max using Epley, Brzycki, Lombardi, O'Conner, and Lander formulas.
Training Volume Calculator
Calculate total training volume in sets, reps, and tonnage for any workout.
Strength Ratio Calculator
Assess your push, pull, and leg strength ratios relative to your bodyweight.
RPE Calculator
Predict your working weight or rep count at any RPE based on your training max.
Fat Intake Calculator
Calculate your optimal daily fat intake in grams based on total calorie targets.
Creatine Calculator
Calculate your daily creatine maintenance dose and loading phase amounts by bodyweight.
Protein Powder Calculator
Find out how many protein powder scoops you need to hit your daily protein target.
Bulk Calculator
Calculate daily calorie intake for a controlled bulk based on TDEE and surplus size.
Lean Bulk Calculator
Calculate calories for a lean bulk with capped surplus to minimise fat gain.
Intermittent Fasting Calculator
Calculate your eating and fasting windows based on your chosen IF protocol.
TDEE Calculator
Calculate your Total Daily Energy Expenditure using the Mifflin-St Jeor equation.
Starbucks Macro Calculator
Look up calories, protein, carbs, and fat for popular Starbucks drinks and food items.
Carnivore Macro Calculator
Calculate your macro targets on a carnivore diet from your weight and goals.
Subway Macro Calculator
Find the calories, protein, carbs, and fat in your custom Subway order.