∫ Laplace Transform Calculator

Solve Laplace & Inverse Laplace Transforms Instantly

Calculate Transform

Use standard notation: t^2 for t², sin(t), cos(t), e^(at), etc.

Result:
Enter a function and click calculate

Quick Examples - Click to Try:

Laplace Transform Table

Common Laplace transforms used in engineering and mathematics:

f(t) - Time Domain F(s) - Frequency Domain Conditions
1 1/s s > 0
t 1/s² s > 0
2/s³ s > 0
tⁿ n!/s^(n+1) s > 0, n ∈ ℕ
e^(at) 1/(s-a) s > a
sin(at) a/(s²+a²) s > 0
cos(at) s/(s²+a²) s > 0
sinh(at) a/(s²-a²) s > |a|
cosh(at) s/(s²-a²) s > |a|
t·e^(at) 1/(s-a)² s > a

What is the Laplace Transform?

The Laplace transform is a powerful integral transform used extensively in engineering, physics, and mathematics. It converts functions from the time domain f(t) to the frequency domain F(s), making it easier to solve differential equations and analyze systems.

Forward Laplace Transform:

L{f(t)} = F(s) = ∫₀^∞ f(t)·e^(-st) dt

Inverse Laplace Transform:

L⁻¹{F(s)} = f(t)

How to Use This Calculator

  • Select Transform Type: Choose between forward Laplace or inverse Laplace transform
  • Enter Function: Input your function using standard mathematical notation
  • Click Calculate: Get instant results with the transformed function
  • Try Examples: Click quick example buttons to see how different functions transform

Applications of Laplace Transforms

  • Differential Equations: Solve linear ordinary differential equations (ODEs) easily
  • Control Systems: Analyze transfer functions and system stability
  • Circuit Analysis: Study electrical circuits in the frequency domain
  • Signal Processing: Analyze and filter signals
  • Mechanical Systems: Study vibrations and dynamics
  • Heat Transfer: Solve heat conduction problems

Properties of Laplace Transform

  • Linearity: L{af(t) + bg(t)} = aF(s) + bG(s)
  • First Derivative: L{f'(t)} = sF(s) - f(0)
  • Second Derivative: L{f''(t)} = s²F(s) - sf(0) - f'(0)
  • Time Shifting: L{f(t-a)u(t-a)} = e^(-as)F(s)
  • Frequency Shifting: L{e^(at)f(t)} = F(s-a)
  • Convolution: L{f*g} = F(s)·G(s)

Why Use Laplace Transforms?

Laplace transforms simplify complex mathematical operations:

  • Convert differential equations into algebraic equations
  • Handle initial conditions naturally
  • Simplify convolution operations into multiplication
  • Provide systematic approach to solving linear systems
  • Enable frequency domain analysis
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