LubeCalc Pro
The Professional Engineering Calculator for Rotating Equipment & Fluid Power Engineers
45+ validated calculators built for lube oil systems, hydraulics, seals, pumps, heat exchangers, and more — based on API, ASME, and ASTM standards.
Thoughtfully crafted to elevate what matters most.
Simple Pricing
$49.99
One-Time Purchase
3-day free trial — try every feature
45+ calculators included
17+ reference tables included
No subscription, no recurring fees
Stop searching through spreadsheets, textbooks, and scattered online tools. Every calculation you need — validated, organized, and in your pocket.
11 Engineering Modules — 48 Calculators
Viscosity & Fluid Properties ASTM D341 viscosity-temperature, Refutas blending, kappa ratio, fluid safety checks
Piping & Pressure Drop Darcy-Weisbach pressure drop, pipe velocity, Reynolds number, orifice flow, hose sizing
Pump & Lube Systems Pump sizing, NPSH available, affinity laws, reservoir sizing, bearing flow & relube, oil heat load, filter ΔP
Hydraulic Systems Cylinder force/speed/flow, hydraulic motor, accumulator pre-charge, heat generation, liquid Cv, relief valve sizing
Seal Support Systems API 682 seal plan analysis (Plans 11–54), guided seal support wizard
Heat Transfer Oil cooler LMTD, multi-pass heat exchanger, cooling water flow, tank heating
Pressure Vessels ASME Section VIII shell thickness, vessel volume, hydrostatic test, ASME B16.5 flange rating
Electrical Motor sizing & FLA, heater sizing, running cost, voltage drop, power factor correction, wire sizing
Pneumatics Valve Cv sizing, air consumption, air receiver sizing
Filtration ISO 4406 cleanliness targeting
System Wizards Full lube system builder, lube system estimator, seal system estimator
Unit Conversions 12 categories — pressure, flow, temperature, length, force, power, torque, area, volume, mass, density, viscosity
Save Projects & Export PDF Reports
Organize calculations by project. Generate professional PDF reports to share with your team or attach to documentation packages.
17+ Reference Tables
Quick-access reference data for pipe schedules, fluid properties, material specifications, and engineering constants — no searching required.
Works Completely Offline
All calculations run locally on your device. Use LubeCalc Pro in the field, on the plant floor, or anywhere without an internet connection.
Industry-Standard Formulae
Every calculation is based on recognized engineering standards — API 614, API 682, ASME Section VIII, ASTM D341, and more.