Haverly's PetroCalc2.1.1 - App Store

PETROCALC - THE TRUSTED PETROLEUM CALCULATOR IN YOUR POCKET

PetroCalc is the all‑in‑one oil & gas calculator that engineers, technicians, and students rely on for fast, accurate viscosity calculations, crude‑oil blending, and every other petroleum‑property task. Whether you need an oil calculator for the field, a crude‑oil calculator for the lab, or a classroom reference, PetroCalc streamlines every petroleum calculation-from viscosity blending to heating‑value look‑ups-completely offline.

KEY FEATURES
. Unit Conversion - Instantly switch between energy units (MJ/m³, MBTU/bbl, BTU/gal, kCal), temperature (°F/°C), pressure (psi/bar), oil‑density & gravity (kg/m³, API °, specific gravity), kinematic ↔ dynamic viscosity (cSt ↔ cP) and operational scales (SUS, SFS, Redwood I, Engler °), plus calorific‑value conversions and more with our intuitive oil & gas calculator interface.
. Distillation‑Curve Tools - Convert temperatures between TBP, ASTM D86, D1160, and D2887 scales and perform yield‑temperature interpolation for full distillation‑curve analysis.
. Blending Tools - Execute 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.
. Fuel Property Indices - Compute Cetane Index (ASTM D4737 A/B, D976), Driveability Index, Refractive Index, and additional viscosity calculations.
. Heating Values - Obtain Gross & Net HHV in MJ/m³, MBTU/bbl, BTU/gal, kCal/kg, and more.
. Boiling‑Point Utilities - IBP/EBP plus five average‑boiling‑point methods (Volume, Weight, Molal, Cubic, Mean).
. K‑Factor Calculations - UOP K, Watson K, VRC K, Whole‑Crude K at any temperature.
. Viscosity Prediction - Single‑point, two‑point (Twu), and API 11A4.2 models with built‑in viscosity‑blending conversions.

WHY PETROCALC?
. Developed by Haverly Systems, a leader in petroleum‑process modeling.
. Optimized for petroleum, chemical, and process engineers-and perfect for students in engineering courses who need a dependable petroleum calculator and oil calculator for coursework.
. Works fully offline-no data connection required on‑site.
. Simple, accurate, and fast: the only crude‑oil calculator and petroleum‑blending tool you’ll ever need.

Download PetroCalc today and tackle every oil & gas calculation-from distillation‑curve conversions and viscosity blending to heating values-with confidence.

Version History Improved reference temperature unit handling for API-to-Density calculations. 2.1.1 May 2 What’s New in PetroCalc 2.0

• Re‑engineered interface and new name—PetroCalc replaces the retired Property Calculator
• Expanded Unit Conversion hub (energy, temp, pressure, API °, cSt ↔ cP, SUS/SFS/Redwood/Engler, calorific values)
• All‑new Distillation‑Curve tools: TBP ↔ ASTM D86, D1160, D2887 + yield‑temperature interpolation
• Enhanced Blending suite for RVP, flash/smoke/pour/cloud/freeze points, API Gravity, sulfur, nitrogen & custom fractions
• Added fuel‑property indices (Cetane, Driveability, Refractive) and full HHV calculator
• New K‑factor and viscosity‑prediction models (UOP K, Watson K, VRC K, single‑/two‑point & API 11A4.2)
• Faster, fully offline calculations and numerous performance fixes 2.0 05/15/2025 - Blending margins and padding reduced 1.16 03/31/2021 - Accessibility text settings disabled
- blending page UI improvements 1.15 02/03/2021 - Blending Page improvements 1.14 01/29/2021 - Added Volume % option to all weight % blending indices.
- Code quality improvements 1.13 01/21/2021 - Added wt% blending props (acidity, mercaptan sulfur, sulfur, basic nitrogen, nitrogen, metals, yield wt%)
- Removed notification
- Improved limits checking and message added for errors (blending page)
- Blending result removed when blend unit, temp unit, or index changes 1.12 12/31/2020 - Label sizing bug fixed (attempt #2) 1.11 06/19/2020 - Label sizing bug fixed 1.10 06/17/2020 - Improved Design
- Clearer labels
- Grids implemented
- Updated MUGI notification
- Added Version Number
- Modal Page Style bug fixed by setting style to fullscreen
- Dark Mode Compatibility (But No Dark mode themes yet) 1.9 06/13/2020 -Mug notification updated 1.8 08/03/2019 - Mugi notification 1.7 02/05/2019 - Added MUG notification 1.6 06/27/2018 Added MUGI notification 1.5 11/29/2017 - Bug Fixes 1.4 01/03/2017 - Redesigned page layouts for cleaner look
- Minor improvements and bug fixes 1.3 11/07/2016 - the iOS required version has been dropped to 7.1
- bug fixes 1.2 10/22/2016 Negative numbers now supported
Minor design improvements made 1.1 09/26/2016 1.0 06/27/2016