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Professional Engineering App

LubeCalc Pro

Forty-seven engineering calculators for rotating equipment and fluid power engineers, with reference data, projects, PDF reporting, unit conversion, and offline operation.

LubeCalc Pro app icon

Coming Soon

Release statusiOS review in progressGoogle Play submission follows
47engineering calculators
18reference resources
11engineering modules
Offlinecalculations run on-device

Why It Exists

Stop searching through spreadsheets, textbooks, and scattered online tools.

LubeCalc Pro puts validated calculations, project organization, and working reference data in one focused engineering app.

01

Projects & PDF Reports

Save calculations by client, job, or equipment tag. Export individual calculations or a complete project as a professional PDF report.

02

18 Reference Resources

Keep pipe schedules, fluid properties, material specifications, engineering constants, and 12 unit-conversion categories close to the work.

03

Completely Offline

Calculations, reference data, and project tools run locally on the device for field, plant-floor, offshore, and remote use.

Modules

The calculations that stay close to the work.

01

Viscosity & Fluid Properties

ASTM D341 viscosity-temperature, Refutas blending, kappa ratio, and fluid safety checks.

02

Piping & Pressure Drop

Darcy-Weisbach pressure drop, pipe velocity, Reynolds number, orifice flow, and hose sizing.

03

Pump & Lube Systems

Pump sizing, NPSH available, affinity laws, reservoir sizing, bearing flow, oil heat load, and filter pressure drop.

04

Hydraulic Systems

Cylinder force, speed, flow, hydraulic motor, accumulator pre-charge, heat generation, liquid Cv, and relief valve sizing.

05

Seal Support Systems

API 682 seal plan analysis for Plans 11 through 54 and a guided seal support wizard.

06

Heat Transfer

Oil cooler LMTD, multi-pass heat exchanger, cooling water flow, and tank heating.

07

Pressure Vessels

ASME Section VIII shell thickness, vessel volume, hydrostatic test pressure, and flange-rating references.

08

Electrical

Motor sizing, full-load current, heater sizing, voltage drop, running cost, and power-factor calculations.

09

Pneumatics

Valve Cv sizing, air consumption, and air-receiver sizing.

10

Filtration

ISO 4406 cleanliness targeting and filtration-related engineering checks.

11

System Wizards

Guided lube-system builder, lube-system estimator, and seal-system estimator.

Simple Pricing

$49.99one-time purchase

Three-day free trial. Every calculator and reference table included. No subscription and no recurring fee.

Current release path
  1. 01

    iPhone and iPad build in App Store Connect review

  2. 02

    Google Play submission planned after iOS review

  3. 03

    Store availability subject to Apple and Google approval

Industry-Standard Formulae

Recognized methods, organized for preliminary engineering.

Calculation notes identify the applicable methodology and assumptions so results can be checked against project requirements.

  • API 614 and API 682
  • ASME Section VIII, B31.3, B36.10, and B16.5
  • ASTM D341 and ASTM D7152/Refutas
  • TEMA and Hydraulic Institute guidance
  • ISA 75.01, API 520, and NEC Article 430
Professional-use note

LubeCalc Pro supports preliminary engineering, equipment sizing, field checks, and documentation. It does not replace detailed engineering analysis, the applicable project standards, or professional engineering judgment.