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Electrical Engineering
Calculate circuit parameters, power factor, filter design and more
Mechanical Engineering
Stress analysis, beam calculations, gear ratios and fluid dynamics
Civil Engineering
Structural analysis, concrete design, load calculations and hydraulics
Chemical Engineering
Reaction kinetics, heat exchangers, fluid flow and thermodynamics
Unit Converter
Convert units across all disciplines
Reference Library
Access constants and material properties
Data Logger
Track and analyze measurements
Cost & Efficiency Estimator
Estimate project costs and energy efficiency
Safety Factor Calculator
Calculate reliability and safety factors
Graph Plotter
Plot equations and analyze functions
Recent Calculations

    Calculation History

    Recent Calculations

      Graph Plotter

      Interactive Graph Plotter

      Electrical Engineering

      Ohm's Law
      Power Factor
      RLC Circuit
      Filter Design
      Voltage Divider
      Current Divider
      Capacitor Charging/Discharging
      Ohm's Law Calculator
      V = I × R     P = V × I
      Voltage:
      -
      Current:
      -
      Resistance:
      -
      Power:
      -
      Power Factor Calculator
      PF = P / S
      Power Factor (PF):
      -
      RLC Circuit Calculator
      Z = √(R² + (XL - XC)²)     XL = 2πfL     XC = 1/(2πfC)     f₀ = 1/(2π√(LC))
      Impedance (Z):
      -
      Inductive Reactance (XL):
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      Capacitive Reactance (XC):
      -
      Resonant Frequency (f₀):
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      Phase Angle (φ):
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      Filter Design Calculator
      f = 1/(2π√(RC))     f = 1/(2π√(LC))     f = R/(2πL)
      Cutoff Frequency:
      -
      Resistance:
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      Capacitance:
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      Inductance:
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      Voltage Divider Calculator
      Vout = Vin × (R2 / (R1 + R2))
      Output Voltage (Vout):
      -
      Current Divider Calculator
      Iout = Itotal × (Rtotal / Ri)
      Output Current (Iout):
      -
      Capacitor Charging/Discharging Calculator
      V(t) = V0 × (1 - e^(-t/RC)) [Charging] or V(t) = V0 × e^(-t/RC) [Discharging]
      Voltage at Time t (V(t)):
      -

      Mechanical Engineering

      Beam Deflection
      Stress Analysis
      Gear Ratios
      Fluid Dynamics
      Kinetic Energy
      Potential Energy
      SHM Period
      Beam Deflection Calculator
      MPa
      m^4
      Deflection:
      -
      Stress Analysis Calculator
      Stress (σ):
      -
      Gear Ratios Calculator
      Gear Ratio:
      -
      Fluid Dynamics Calculator
      Velocity (V):
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      Reynolds Number (Re):
      -
      Dynamic Pressure (P):
      -
      Kinetic Energy per Unit Volume:
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      Kinetic Energy Calculator
      KE = ½ × m × v²
      Kinetic Energy (KE):
      -
      Potential Energy Calculator
      PE = m × g × h
      Potential Energy (PE):
      -
      SHM Period Calculator
      T = 2π × √(m/k) [Spring] or T = 2π × √(L/g) [Pendulum]
      Period (T):
      -
      Frequency (f):
      -

      Civil Engineering

      Structural Analysis
      Concrete Design
      Area Calculation
      Volume Calculation
      Slope Calculation
      Load Calculation
      Hydraulics
      Structural Analysis Calculator
      Maximum Moment:
      -
      Maximum Shear:
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      Maximum Deflection:
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      Concrete Design Calculator
      Required Steel Area (As):
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      Reinforcement Ratio (ρ):
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      Capacity Moment (Mn):
      -
      Area Calculator
      Area:
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      Perimeter:
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      Volume Calculator
      Volume:
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      Surface Area:
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      Slope Calculator
      Slope (m):
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      Angle (θ):
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      Grade (%):
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      Load Calculator
      Total Load:
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      Load per Unit Length:
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      Hydraulics Calculator
      Velocity:
      -
      Head Loss:
      -
      Reynolds Number:
      -

      Chemical Engineering

      Reaction Kinetics
      Heat Exchanger
      Fluid Flow
      Molarity
      Dilution
      Density
      Thermodynamics
      Reaction Kinetics Calculator
      Final Concentration:
      -
      Conversion (%):
      -
      Half-life:
      -
      Heat Exchanger Calculator
      Heat Transfer Rate (Q):
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      LMTD:
      -
      Effectiveness:
      -
      Fluid Flow Calculator
      Velocity:
      -
      Reynolds Number:
      -
      Pressure Drop:
      -
      Molarity Calculator
      Molarity (M):
      -
      Moles:
      -
      Dilution Calculator
      Final Volume (V₂):
      -
      Dilution Factor:
      -
      Density Calculator
      Density (ρ):
      -
      Specific Gravity:
      -
      Thermodynamics Calculator
      Result:
      -

      Unit Converter

      Unit Converter

      Reference Library

      Engineering Constants & Material Properties
      Name Symbol Value Unit Description

      Data Logger

      Data Analysis
      Mean:
      -
      Median:
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      Mode:
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      Standard Deviation:
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      Variance:
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      Range:
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      Skewness:
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      Kurtosis:
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      Sample Size:
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      Cost & Efficiency Estimator

      Project Cost & Energy Efficiency Calculator
      Total Cost of Ownership:
      -
      Net Present Value:
      -
      Payback Period:
      -
      Return on Investment:
      -
      Energy Efficiency:
      -
      Annual Energy Savings:
      -

      Safety Factor Calculator

      Safety Factor & Reliability Calculator
      Safety Factor:
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      Allowable Stress:
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      Margin of Safety:
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      Failure Probability:
      -
      Design Life Adjustment:
      -

      Graph Plotter

      Function Graph Plotter