6,615 free calculators — all interlinked with our meal plans
Search or browse by category. Every calculator shows its formula, its inputs, and links back to related meal & training plans.
Showing 1–60 of 6,615 calculators
Page 1 / 111
- Keto & Low-CarbKeto Macro CalculatorDaily fat, protein and net carb targets for a standard ketogenic diet.
- Keto & Low-CarbNet Carb CalculatorNet carbs = total carbs − fiber − allowed sugar alcohols.
- Keto & Low-CarbKeto Ratio CalculatorTherapeutic classical keto ratio of fat to protein + carbs.
- Keto & Low-CarbKetosis Timeline EstimatorRough days until nutritional ketosis based on carb intake and activity.
- Keto & Low-CarbKeto Electrolyte CalculatorDaily sodium, potassium and magnesium targets while in ketosis.
- Keto & Low-CarbMCT Oil Dose CalculatorSuggested MCT dose based on tolerance and calorie share.
- Keto & Low-CarbKeto Flu Risk Score0–10 risk score for keto-flu symptoms in your first week.
- Keto & Low-CarbCarb Cycling CalculatorHigh-day vs low-day carb targets for hybrid low-carb athletes.
- Keto & Low-CarbTargeted Keto (TKD) Pre-Workout CarbFast-digesting carb dose 15–30 min before training.
- Keto & Low-CarbCyclical Keto (CKD) Refeed CarbsWeekly refeed carbs on cyclical keto (24–48 h refeed).
- Keto & Low-CarbKeto Alcohol ImpactCalories from alcohol and estimated ketosis suppression time.
- Keto & Low-CarbKeto Fiber TargetDaily fiber target that fits into keto without breaking net-carb ceiling.
- Keto & Low-CarbKeto Cheat-Day RecoveryDays back into ketosis after a high-carb cheat day.
- Keto & Low-CarbFat Adaptation TimelineWeeks until full fat-adaptation for performance and appetite.
- Keto & Low-CarbExogenous Ketone DoseTypical BHB salt/ester dose per serving.
- Weight & Body CompositionBMI CalculatorBody Mass Index with WHO category.
- Weight & Body CompositionBMI PrimeRatio of BMI to the upper healthy limit (25).
- Weight & Body CompositionIdeal Weight CalculatorDevine, Robinson, Miller and Hamwi ideal-weight formulas.
- Weight & Body CompositionNavy Body Fat %US Navy tape-measure body-fat estimate.
- Weight & Body CompositionLean Body MassBoer LBM estimate.
- Weight & Body CompositionFFMI CalculatorFat-Free Mass Index, adjusted for height.
- Weight & Body CompositionWaist-to-Hip RatioWHR — cardiometabolic risk indicator.
- Weight & Body CompositionWaist-to-Height RatioKeep below 0.5.
- Weight & Body CompositionBody Surface AreaMosteller BSA for medical dosing references.
- Weight & Body CompositionFrame SizeSmall/medium/large frame based on wrist circumference.
- Weight & Body CompositionRelative Fat MassWoolcott/Bergman single-circumference alternative to BMI.
- Weight & Body CompositionA Body Shape Index (ABSI)Height + waist + BMI mortality-risk index.
- Weight & Body CompositionBody Adiposity IndexBergman BAI from hip and height.
- Weight & Body CompositionPonderal IndexHeight-normalised alternative to BMI.
- Weight & Body CompositionSomatotype EstimatorRough ecto/meso/endo classification.
- Energy & MacrosBMR (Mifflin-St Jeor)Basal metabolic rate — Mifflin-St Jeor equation.
- Energy & MacrosBMR (Harris-Benedict)Basal metabolic rate — original Harris-Benedict.
- Energy & MacrosBMR (Katch-McArdle)Uses lean body mass instead of weight+height.
- Energy & MacrosTDEE CalculatorTotal Daily Energy Expenditure.
- Energy & MacrosCalorie Deficit CalculatorCalories to lose X kg per week.
- Energy & MacrosBulking Calorie CalculatorLean bulk surplus.
- Energy & MacrosCutting Calorie CalculatorAggressive cut with muscle retention.
- Energy & MacrosMaintenance Calorie CalculatorCalories that hold weight.
- Energy & MacrosReverse Diet CalculatorWeekly incremental increase after a cut.
- Energy & MacrosRefeed Day CalculatorOne-day carb refeed target.
- Energy & MacrosCustom Macro SplitSplit kcal into fat/protein/carbs by chosen %.
- Energy & MacrosProtein RequirementProtein target from goal.
- Energy & MacrosFat RequirementEssential + optimal fat intake.
- Energy & MacrosCarbohydrate RequirementCarbs from kcal split.
- Energy & MacrosFiber RequirementDaily fiber target.
- Fitness & Strength1RM Calculator (Epley)One-rep max via the Epley formula.
- Fitness & Strength1RM Calculator (Brzycki)One-rep max via the Brzycki formula.
- Fitness & Strength1RM Calculator (Lombardi)One-rep max via the Lombardi formula.
- Fitness & Strength1RM Calculator (Oconnor)One-rep max via the Oconnor formula.
- Fitness & Strength1RM Calculator (Wathan)One-rep max via the Wathan formula.
- Fitness & StrengthRep-Max Table (2–15)Estimated weight for any rep range from 1RM.
- Fitness & StrengthWilks ScoreBodyweight-adjusted powerlifting score.
- Fitness & StrengthDOTS ScoreModern powerlifting comparison replacing Wilks.
- Fitness & StrengthPowerlifting TotalSum of best squat, bench, deadlift.
- Fitness & StrengthTraining Volume LoadSets × reps × weight for a session.
- Fitness & StrengthRPE → % 1RMRTS % of 1RM for a given RPE at reps.
- Fitness & StrengthTraining Max5/3/1 training max = 90% of 1RM.
- Fitness & StrengthBench Press StandardsBodyweight multipliers by level.
- Fitness & StrengthSquat StandardsBodyweight multipliers by level.
- Fitness & StrengthDeadlift StandardsBodyweight multipliers by level.
Page 1 / 111