Mechanical calcs with the units checked for you
From a shaft sized for power and speed to a wall's heat loss, ProveCalc keeps the givens, the relations and the results on one worksheet and checks the units at every step, so a calculation reads like the hand calc it replaces.
rpm, kW and N·m without conversion slips
The engine handles rotational units, temperature differences and mixed systems, and reports results in the unit you ask for.
Solve for any unknown
State the relation once and solve it for whichever variable you need, symbolically or numerically, with the solve recorded.
Yours to keep
$200 once, offline, with worksheets as open files on your machine. No subscription for a tool you use every week.
What you can calculate
- ✓Stress, strain and deflection of beams and members
- ✓Shafts in torsion: torque from power and speed, shear stress, twist
- ✓Dry friction, wedges, belt friction and band brakes
- ✓Fluid statics and pressure on surfaces
- ✓Conduction and thermal resistance
- ✓Vectors: moments, forces along lines, dot and cross products with units
Worked examples
Simply supported beam: reactions, maximum moment and bending stress
R_A = 56 kN, R_B = 46 kN, M_max = 88.17 kN·m at 2.17 m from A, and σ_max = 161.2 MPa < 207 MPa: the W310×39 is adequate in bending.
Cantilever beam: tip deflection under a point load
The tip deflects 15.32 mm, and the fixed end carries 12.5 kN·m.
Euler buckling load of a pinned column
P_cr = 548.3 kN, so the factor of safety against buckling is 4.57.
Solid shaft in torsion: torque, shear stress and angle of twist
T = 98.79 N·m, τ_max = 18.63 MPa and the shaft twists 0.712° over 0.8 m.
Hydrostatic force on a vertical gate
F_R = 88.29 kN, acting 1 m above the bottom of the gate (2 m below the surface).
Heat loss by conduction through a plane wall
The wall loses 1800 W, and its thermal resistance is 0.0139 K/W.
Buy once, own it forever
$200 one time. No subscription, no renewal, and the version you bought keeps working.
No connection needed
Works offline. The only network use is checking for updates and a one-time activation check.
AI-native, never required
The assistant drafts on the same worksheet you work on. You can do everything without it, and it never does the math: the engine does, with units, and checks it.