Haverly's PetroCalc

Haverly's PetroCalc

Oil & Gas Property Tools

3 ratings
1 review
Free

Details

  • Released
  • Updated
  • June 27, 2016
  • May 2, 2026

Features

Haverly's PetroCalc screenshot #1 for iPhone
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Haverly's PetroCalc screenshot #8 for iPhone
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About

This application provides engineers, technicians, and students with a comprehensive set of tools for petroleum property calculations. It offers features for unit conversion, crude oil blending, viscosity prediction, and distillation curve analysis, all accessible offline.

Unit conversion for energy, temperature, pressure, and viscosity
Distillation curve analysis and interpolation
Crude oil and petroleum blending calculations
Fuel property index computation
Heating value calculations
Boiling point utilities
K-factor calculations
Viscosity prediction models
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What's New in Haverly's PetroCalc

2.1.1

May 2, 2026

Improved reference temperature unit handling for API-to-Density calculations.

User reviews

Great tool - user friendly and fit for purpose

I would recommend this property calculator for those wanting to check crude assay data, and those wanting to blend petroleum products. It has all the calculations you need, and the screen layouts have been well thought through. I would like to be able to blend Reid Vapour Pressure in kPa (rather than having to use psi), however this is only a tiny minor inconvenience for what is a unique and useful tool, available for your phone! - Geoffrey Gill
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FAQ

What is Haverly's PetroCalc used for?

Haverly's PetroCalc is an all-in-one calculator for oil and gas property tasks. It helps engineers, technicians, and students with calculations like viscosity blending, crude-oil blending, and heating-value look-ups.

Does Haverly's PetroCalc work offline?

Yes, Haverly's PetroCalc works fully offline, meaning no data connection is required on-site for its use.

What types of unit conversions does Haverly's PetroCalc offer?

Haverly's PetroCalc offers unit conversions for energy (MJ/m³, MBTU/bbl, BTU/gal, kCal), temperature (°F/°C), pressure (psi/bar), oil density & gravity (kg/m³, API °, specific gravity), and viscosity (cSt ↔ cP, SUS, SFS, Redwood I, Engler °).

What blending tools are available in Haverly's PetroCalc?

The app provides precise crude-oil blending and petroleum blending for RVP, Flash Point, Smoke Point, Pour/Cloud/Freeze Point, API Gravity, Aniline Point, Mercaptan Sulfur, Nitrogen, and custom fractions.

Is Haverly's PetroCalc suitable for students?

Yes, it is perfect for students in engineering courses who need a dependable petroleum calculator for their coursework.

What is the rating of Haverly's PetroCalc?

Haverly's PetroCalc has a rating of 4.7 stars from 3 ratings.

On which devices can Haverly's PetroCalc be used?

Haverly's PetroCalc is supported on iPhone, iPad, and iPod devices.

How often is Haverly's PetroCalc updated?

The latest version, 2.1.1, was last updated on May 2, 2026. This indicates a history of updates, though the exact frequency is not specified.