All tools, A–Z

Every calculator and simulator on the site, one flat alphabetical list — or browse by popular votes.

101 tools (JavaScript enables live filter) 2 & 4-Stroke Engine SimulatorMechanical A/B Test Sample Size CalculatorMathematics Altitude & DepthEnvironmental Ball and Beam Control SimulatorControl Systems Battery Sizing & RuntimeElectrical Beam Deflection & Stress CalculatorMechanical Bearing CalculatorMechanical Beverage Cooling SimulatorPhysics Bit CalculatorComputers BMI CalculatorHealth Bode PlotControl Systems Bolt Torque & Preload CalculatorMechanical Car Finance CalculatorFinance Circlip CalculatorMechanical Clock Angle CalculatorMathematics Collision SimulatorPhysics Column Buckling CalculatorMechanical Compound Interest CalculatorFinance Concrete Mix CalculatorMaterials and Elements Currency ConverterFinance Data Transfer Time CalculatorComputers Debt Payoff CalculatorFinance Dice Roller & Coin TossMathematics Egg Timer CalculatorDIY Electrical CircuitElectrical Energy Cost CalculatorEnvironmental EV Charging & Running CostEnvironmental Feels Like TemperatureEnvironmental FIRE CalculatorFinance First-Order Lag & Dead TimeControl Systems Fluid PropertiesMaterials and Elements Galileo Drop ExperimentPhysics Gear Train CalculatorMechanical Geometry — 2D & 3DMathematics Graphing CalculatorMathematics Gym CompanionHealth Heart Rate Zones & Max HRHealth Heat Loss & Heat Pump SizingEnvironmental Hydraulic Force CalculatorMechanical Inclined PlanePhysics Inflation CalculatorFinance Integral Windup & Anti-WindupControl Systems Internet Speed TestComputers Limits & Fits CalculatorMechanical Mass-Spring-DamperPhysics MoleculesMaterials and Elements Mortgage CalculatorFinance Motor Starting & InrushElectrical Nozzle SimulatorMechanical O-Ring CalculatorMechanical On-Off Control & HysteresisControl Systems Orbital MechanicsPhysics Paint Colour MixingDIY Paint Coverage CalculatorDIY Password Strength & Crack TimeComputers Pendulum SimulatorPhysics Percentage CalculatorMathematics Periodic TableMaterials and Elements PID ControlControl Systems Pipe Flow & Pressure Drop CalculatorMechanical Power Factor CalculatorElectrical Precision Timer & StopwatchDIY Projectile Motion & Golf Ball FlightPhysics PsychrometerEnvironmental PV DiagramMechanical RAID CalculatorComputers Refraction & Diffraction CalculatorPhysics RelativityPhysics Rent vs Buy CalculatorFinance Resistor Colour Code CalculatorElectrical Rocket Equation & Delta-v BudgetPhysics Room Colour VisualiserDIY Running, Cycling & Swimming PaceHealth Salary ConverterFinance Sampling & AliasingControl Systems Scientific CalculatorMathematics Screen Refresh Rate TestComputers Screen Size & Viewing DistanceComputers Screw, Stud & Tap Drill SizingDIY Solar PV EstimatorEnvironmental Solar SystemPhysics Spring Rate CalculatorMechanical Statistics & ProbabilityMathematics Steak Timer & Doneness CalculatorDIY Stopping Distance CalculatorMechanical Student Loan CalculatorFinance Subnet CalculatorComputers Sun & MoonEnvironmental SUVAT CalculatorPhysics Sweat Rate & HydrationHealth TDEE & Calorie CalculatorHealth Tea & Coffee Brewing CalculatorDIY Time Zone ConverterEnvironmental Tip Calculator & Bill SplitterFinance Transformer CalculatorElectrical Trigonometry & PythagorasMathematics Typing Speed TestComputers Unit ConverterMechanical Waist-to-Height Ratio CalculatorHealth Week Number CalculatorMathematics Wire Gauge & Voltage Drop CalculatorElectrical