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Lean Body Mass CalculatorCalculate lean body mass from weight and body fat percentage.Score 22fitnessBMI CalculatorCalculate body mass index using metric or imperial units and view the standard BMI category.Score 16fitnessPace CalculatorCalculate running or walking pace from time and distance.Score 14fitnessCalories Burned CalculatorEstimate calories burned from MET, weight, and duration.Score 14fitnessOne Rep Max CalculatorEstimate one rep max using the Epley formula.Score 14fitnessTarget Heart Rate CalculatorEstimate target heart rate using the Karvonen method.Score 14fitnessProtein Intake CalculatorEstimate daily protein target from body weight and grams per kilogram.Score 14fitnessHeart Rate Zone CalculatorCalculate heart rate training zones from age and resting heart rate.Score 14fitnessMortgage CalculatorEstimate monthly mortgage payments, total interest, principal, and payoff cost.Score 2Compound Interest CalculatorProject future investment value with compounding frequency and recurring contributions.Score 2Fuel Cost CalculatorEstimate advanced trip fuel cost with distance modes, efficiency units, fuel price units, emissions, commute projections, and vehicle comparisons.Score 2Scientific CalculatorUse a keyboard-friendly scientific calculator with trig, logs, powers, constants, and memory.Score 2Percentage CalculatorCalculate percentages, percent change, discounts, increases, and reverse percentages.Score 2Loan CalculatorEstimate loan payments, total interest, payoff totals, and amortized monthly costs.Score 2Force CalculatorCalculate force, mass, or acceleration using Newton's second law.Score 2Ohm's Law CalculatorCalculate voltage, current, resistance, and power from Ohm's law relationships.Score 2Age CalculatorCalculate exact age in years, months, days, total days, and next birthday countdown.Score 2Annual Salary to Hourly CalculatorConvert annual salary into hourly, weekly, biweekly, monthly, and daily pay estimates.Score 2Overtime Pay CalculatorCalculate regular pay, overtime pay, gross pay, and overtime share for a pay period.Score 2Payroll Cost CalculatorEstimate fully loaded payroll cost including gross pay, employer taxes, benefits, and insurance.Score 2