
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.
What's New in Haverly's PetroCalc
2.1.1
May 2, 2026
Improved reference temperature unit handling for API-to-Density calculations.
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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.







