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Torque CalculatorCalculate torque from force and lever arm distance.Score 22mechanicalHorsepower CalculatorEstimate horsepower from torque and RPM.Score 22mechanicalGear Ratio CalculatorCalculate gear ratio from driven and driver gear teeth.Score 22mechanicalHydraulic Pressure CalculatorCalculate hydraulic pressure from force and piston area.Score 14mechanicalStrain CalculatorCalculate strain from change in length and original length.Score 12mechanicalCompression Ratio CalculatorCalculate engine compression ratio from swept volume and clearance volume.Score 12mechanicalStress CalculatorCalculate mechanical stress from force and cross-sectional area.Score 4mechanicalPower CalculatorCalculate mechanical power from work and time.Score 4mechanicalMortgage CalculatorEstimate monthly mortgage payments, total interest, principal, and payoff cost.Score 2BMI CalculatorCalculate body mass index using metric or imperial units and view the standard BMI category.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 2