5 Free Tools
Science & Engineering Calculators
Formula-backed tools for fluid mechanics, compressible flow, machine elements, heat transfer, and basic structural analysis.
Reynolds Number Calculator
Classify internal pipe flow from velocity and viscosity
Mach Number Calculator
Compare speed with the local speed of sound
Gear Ratio Calculator
Find output speed and torque from tooth counts
Thermal Resistance Calculator
Estimate conduction resistance and heat flow
Beam Deflection Calculator
Estimate centre deflection for a supported beam