All Calculators (A-Z)
Every calculator on AJ Designer — 373 tools across 19 categories — sorted alphabetically with a category label on each entry.
A
- AC Circuit DesignElectrical Circuits
- Acceleration ConverterUnit Converters
- Acoustic Flow Meter DesignPipes & Pressure
- Activated SludgeEnvironmental & Water
- Addition: Traditional MethodArithmetic & Fractions
- Adjusted BasisReal Estate
- AgeEveryday Tools
- Airplane Weight ShiftGeotechnical & Seismic
- Aluminum Pipe DesignPipes & Pressure
- Angle ConverterUnit Converters
- Annuity Future ValueFinance & Investing
- Annuity Present ValueFinance & Investing
- AnnulusGeometry & Shapes
- Area Unit ConverterUnit Converters
- Atmospheric Dispersion ModelEnvironmental & Water
B
- Bank DiscountsFinance & Investing
- Battery LifeEveryday Tools
- Bernoulli TheoremFluid Mechanics
- Bilinear InterpolationAlgebra & Functions
- BinaryArithmetic & Fractions
- Biochemical Oxygen DemandEnvironmental & Water
- Biot NumberDimensionless Numbers
- BMIHealth & Fitness
- BMRHealth & Fitness
- Board FeetEveryday Tools
- Body Fat PercentageHealth & Fitness
- Break Even RatioFinance & Investing
- Brinell Hardness NumberEveryday Tools
- Buried Corrugated Pipe DesignPipes & Pressure
- Buried Plastic Pipe DesignPipes & Pressure
- Buried Spiral Rib Pipe DesignPipes & Pressure
C
- CalorieHealth & Fitness
- Calories Burned by ActivityHealth & Fitness
- Capacitor DesignElectrical Circuits
- Capacitors in Series & ParallelElectrical Circuits
- Capital RecoveryFinance & Investing
- Capitalization RateReal Estate
- CapsuleGeometry & Shapes
- Cash on Cash RateFinance & Investing
- Cat AgeEveryday Tools
- Cauchy NumberDimensionless Numbers
- Cavitation NumberDimensionless Numbers
- Centripetal AccelerationPhysics
- Centripetal ForcePhysics
- Chezy EquationFluid Mechanics
- Circle Arc LengthGeometry & Shapes
- Circle EquationGeometry & Shapes
- Circle SectorGeometry & Shapes
- Circle SegmentGeometry & Shapes
- Circular MotionPhysics
- Cloud BaseEveryday Tools
- Colebrook EquationFluid Mechanics
- Combinations & PermutationsStatistics & Probability
- Compound InterestFinance & Investing
- Compounding and Discount FactorsFinance & Investing
- Compression RatioAutomotive & Engine
- Concrete VolumeEveryday Tools
- ConeGeometry & Shapes
- Cone FrustumGeometry & Shapes
- Confidence IntervalStatistics & Probability
- Constant Acceleration MotionPhysics
- ContinuityFluid Mechanics
- Coulomb's LawPhysics
- Crawl RatioAutomotive & Engine
- CubeGeometry & Shapes
- Current ConverterUnit Converters
- CycloneEnvironmental & Water
- CylinderGeometry & Shapes
D
- Darcy WeisbachFluid Mechanics
- Darcy's Law EquationsFluid Mechanics
- Days Between DatesEveryday Tools
- Debt Coverage RatioReal Estate
- Debt-to-Income (DTI)Real Estate
- DensityPhysics
- Density ConverterUnit Converters
- DepreciationFinance & Investing
- DistanceGeometry & Shapes
- Division: Long MethodArithmetic & Fractions
- DodecahedronGeometry & Shapes
- Dog AgeEveryday Tools
- Doppler Effect EquationsPhysics
- Double Declining DepreciationFinance & Investing
- Dry Adiabatic Lapse RateThermodynamics & Gas Laws
- Ductile Iron Pipe DesignPipes & Pressure
- Dyno Correction FactorAutomotive & Engine
E
- Earned Value ManagementEveryday Tools
- Earthquake SeismometerGeotechnical & Seismic
- Eckert NumberDimensionless Numbers
- Effective Gear RatioAutomotive & Engine
- Einstein EquationPhysics
- Electrodialysis Membrane DesignGeotechnical & Seismic
- Electrostatic Precipitator DesignEnvironmental & Water
- EllipseGeometry & Shapes
- EllipsoidGeometry & Shapes
- Energy Unit ConverterUnit Converters
- Engine DisplacementAutomotive & Engine
- Engine EquationsAutomotive & Engine
- Equilateral TriangleGeometry & Shapes
- Escape VelocityPhysics
- ET Method HorsepowerAutomotive & Engine
- Euler NumberDimensionless Numbers
- ExponentArithmetic & Fractions
F
- FactorialArithmetic & Fractions
- Final GradeArithmetic & Fractions
- FlocculationEnvironmental & Water
- Fluid PressureFluid Mechanics
- Force EquationPhysics
- Force Unit ConverterUnit Converters
- Fourier NumberDimensionless Numbers
- Fraction to DecimalArithmetic & Fractions
- Fraction: AdditionArithmetic & Fractions
- Fraction: DivisionArithmetic & Fractions
- Fraction: MultiplicationArithmetic & Fractions
- Fraction: SimplifyArithmetic & Fractions
- Fraction: SubtractionArithmetic & Fractions
- French Drain DesignFluid Mechanics
- Frequency ConverterUnit Converters
- Fuel Injector SizeAutomotive & Engine
- Future ValueFinance & Investing
G
- Gain On SaleReal Estate
- Gas MileageEveryday Tools
- GCF (Greatest Common Factor)Arithmetic & Fractions
- Gear EquationsAutomotive & Engine
- Gear RatioAutomotive & Engine
- Geometric FormulasGeometry & Shapes
- GeotextileGeotechnical & Seismic
- GPAEveryday Tools
- Gravitational AccelerationPhysics
- Gravitational ForcePhysics
- Gravity EquationsPhysics
- Gross Domestic ProductFinance & Investing
- Gross Operating IncomeReal Estate
- Gross Rent MultiplierReal Estate
- Gutter DesignFluid Mechanics
H
- Half-LifePhysics
- Hazen WilliamsFluid Mechanics
- Heart RateHealth & Fitness
- Heat IndexThermodynamics & Gas Laws
- HemisphereGeometry & Shapes
- HexArithmetic & Fractions
- HexagonGeometry & Shapes
- Hexagonal PrismGeometry & Shapes
- Hollow CylinderGeometry & Shapes
- Hooke's LawPhysics
- Horsepower EquationsAutomotive & Engine
- Horsepower from Elapsed TimeAutomotive & Engine
- Horsepower from TorqueAutomotive & Engine
- Horsepower from Trap SpeedAutomotive & Engine
- Hydraulic RadiusFluid Mechanics
I
- IcosahedronGeometry & Shapes
- Ideal Gas LawThermodynamics & Gas Laws
- Ideal ReactorEnvironmental & Water
- Ideal WeightHealth & Fitness
- Impulse ForcePhysics
- Impulse Momentum EquationsPhysics
- Impulse-Momentum TheoremPhysics
- Inductor DesignElectrical Circuits
- Inflation RateFinance & Investing
- Interest RateFinance & Investing
- IRRFinance & Investing
- Isosceles TriangleGeometry & Shapes
K
L
- LCM (Least Common Multiple)Arithmetic & Fractions
- Lean Body MassHealth & Fitness
- Length Unit ConverterUnit Converters
- Lens & Mirror EquationPhysics
- Lewis NumberDimensionless Numbers
- Lightning DistanceEveryday Tools
- Line EquationAlgebra & Functions
- Linear ExtrapolationAlgebra & Functions
- Linear InterpolationAlgebra & Functions
- Linear RegressionAlgebra & Functions
- LoanFinance & Investing
- Loan To Value RatioReal Estate
- LogarithmAlgebra & Functions
M
- Mach NumberDimensionless Numbers
- MacroHealth & Fitness
- ManningFluid Mechanics
- Markup & MarginEveryday Tools
- Mass Unit ConverterUnit Converters
- Max Heart RateHealth & Fitness
- Mean LifetimePhysics
- Mean, Median, Mode & RangeStatistics & Probability
- Microorganism DisinfectionEnvironmental & Water
- Microorganism KineticsEnvironmental & Water
- Minor LossesFluid Mechanics
- Mixing DesignEnvironmental & Water
- ModuloArithmetic & Fractions
- Moment EquationPhysics
- MomentumPhysics
- Mortgage LoanReal Estate
- Mortgage Loan PointsReal Estate
- Mortgage Refinance Break-EvenReal Estate
- Multiplication: Grid MethodArithmetic & Fractions
- Multiplication: Lattice MethodArithmetic & Fractions
N
O
- OctagonGeometry & Shapes
- Octagonal PrismGeometry & Shapes
- OctahedronGeometry & Shapes
- Ohm's LawElectrical Circuits
- Oil Recovery FactorGeotechnical & Seismic
- One-Rep Max (1RM)Health & Fitness
- Operating Expense RatioReal Estate
- Orbital PeriodPhysics
- Orifice Flow DesignFluid Mechanics
- Overtime Pay RateEveryday Tools
P
- Paint CoverageEveryday Tools
- ParallelogramGeometry & Shapes
- Parshall Flume DesignFluid Mechanics
- Passive CrossoverAudio & Speakers
- Pay RaiseEveryday Tools
- Peclet NumberDimensionless Numbers
- Pendulum FormulasPhysics
- Pendulum LengthPhysics
- Pendulum PeriodPhysics
- PentagonGeometry & Shapes
- Pentagonal PrismGeometry & Shapes
- Percent ChangeEveryday Tools
- Percent DifferenceEveryday Tools
- Percent ErrorEveryday Tools
- Percent Off SaleEveryday Tools
- Percent YieldEveryday Tools
- PercentageArithmetic & Fractions
- PermeameterEnvironmental & Water
- Pipe FlowFluid Mechanics
- Pipe Hydrostatic Pressure LoadPipes & Pressure
- Pipe Soil Pressure LoadPipes & Pressure
- Pipe Vacuum Pressure LoadPipes & Pressure
- Pipe Wheel LoadingPipes & Pressure
- Plastic Pipe DesignPipes & Pressure
- Potential EnergyPhysics
- PowerPhysics
- Power from Force and VelocityPhysics
- Power from WorkPhysics
- Power to Weight RatioAutomotive & Engine
- Power Unit ConverterUnit Converters
- Prandtl DesignDimensionless Numbers
- Pregnancy Due DateHealth & Fitness
- Present ValueFinance & Investing
- Present Worth AnalysisFinance & Investing
- Pressure Unit ConverterUnit Converters
- Prime FactorizationArithmetic & Fractions
- ProbabilityStatistics & Probability
- Profitability IndexFinance & Investing
- Projectile MotionPhysics
- PumpFluid Mechanics
- PyramidGeometry & Shapes
- Pythagorean TheoremGeometry & Shapes
Q
R
- Radioactive ActivityPhysics
- Radioactive DecayPhysics
- Radioactive MaterialPhysics
- Rainwater Collection DesignEnvironmental & Water
- RC & RL Time ConstantElectrical Circuits
- RectangleGeometry & Shapes
- Rectangular PrismGeometry & Shapes
- Relative HumidityEveryday Tools
- Resistance ConverterUnit Converters
- Resistors in Series & ParallelElectrical Circuits
- Restaurant Dining TipEveryday Tools
- Return on EquityFinance & Investing
- Reverse Osmosis Membrane DesignEnvironmental & Water
- Reynolds NumberFluid Mechanics
- RhombusGeometry & Shapes
- Right TriangleGeometry & Shapes
- Risk EquationsEveryday Tools
- Roman Numerals ConverterArithmetic & Fractions
- RootArithmetic & Fractions
- Rule Of 72Finance & Investing
- Running PaceHealth & Fitness
S
- Sales TaxFinance & Investing
- Sample SizeStatistics & Probability
- Schmidt NumberDimensionless Numbers
- Seismic GeophoneGeotechnical & Seismic
- Sherwood NumberDimensionless Numbers
- Sinking FundFinance & Investing
- Sleep CycleHealth & Fitness
- SlopeAlgebra & Functions
- Smooth Wall Steel PipePipes & Pressure
- Snell's LawPhysics
- SnowEveryday Tools
- Soil ResistivityGeotechnical & Seismic
- Solid WasteEnvironmental & Water
- Sound Intensity DecibelsPhysics
- Sound Wave EquationsPhysics
- Sound Wave SpeedPhysics
- Specific Gas ConstantThermodynamics & Gas Laws
- Specific GravityPhysics
- Specific VolumePhysics
- Speed Unit ConverterUnit Converters
- SphereGeometry & Shapes
- Spherical CapGeometry & Shapes
- Spherical SegmentGeometry & Shapes
- SquareGeometry & Shapes
- Square FootageEveryday Tools
- Square Pyramid FrustumGeometry & Shapes
- Standard DeviationStatistics & Probability
- Static FrictionPhysics
- StatisticsStatistics & Probability
- Stokes LawPhysics
- Straight Line DepreciationFinance & Investing
- Stress StrainPhysics
- Subtraction: Traditional MethodArithmetic & Fractions
- Subwoofer Box Enclosure ComparisonAudio & Speakers
- Subwoofer Vent/PortAudio & Speakers
- Sum of Years DepreciationFinance & Investing
- Suspension Coil Spring RateAutomotive & Engine
- Swimming Pool Water MaintenanceEnvironmental & Water
T
- Tangential VelocityPhysics
- Target Heart Rate ZonesHealth & Fitness
- TDEEHealth & Fitness
- Temperature ConversionThermodynamics & Gas Laws
- TetrahedronGeometry & Shapes
- Thermal ConductivityThermodynamics & Gas Laws
- Thermal DiffusivityThermodynamics & Gas Laws
- Thermal ExpansionThermodynamics & Gas Laws
- Threshold Odor NumberEnvironmental & Water
- Thrust Block DesignPipes & Pressure
- TileEveryday Tools
- Time ConverterUnit Converters
- Time DurationEveryday Tools
- Time Of ConcentrationFluid Mechanics
- Time Zone ConverterEveryday Tools
- Tire DiameterAutomotive & Engine
- Tire Size ComparisonEveryday Tools
- TorquePhysics
- Torque ConverterUnit Converters
- TorusGeometry & Shapes
- Trailer TowingEveryday Tools
- Trap Speed HorsepowerAutomotive & Engine
- TrapezoidGeometry & Shapes
- Triangle EquationsGeometry & Shapes
- Triangular PrismGeometry & Shapes
- Trigonometry EquationsAlgebra & Functions
- Trommel ScreenEnvironmental & Water
U
V
- Vacancy and Credit LossReal Estate
- VarianceStatistics & Probability
- Venturi MeterFluid Mechanics
- Venturi ScrubberEnvironmental & Water
- Viscosity ConverterUnit Converters
- Voltage ConverterUnit Converters
- Voltage DividerElectrical Circuits
- Volume Unit ConverterUnit Converters
- Volumetric EfficiencyAutomotive & Engine
W
- Wastewater Screening DesignEnvironmental & Water
- Water HammerFluid Mechanics
- Water Vapor PressureThermodynamics & Gas Laws
- Wavelength, Frequency & PeriodPhysics
- Weber NumberDimensionless Numbers
- Weight EquationPhysics
- Weight Loss EquationsHealth & Fitness
- Wien's EquationsPhysics
- Wind Chill TemperatureThermodynamics & Gas Laws
- Wind Turbine Power GeneratorElectrical Circuits
- Wing Lift EquationsPhysics
- WorkPhysics