WellCalc
Utilities
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
97 petroleum engineering calculators in your pocket. Well control, drilling, production, reservoir, and more. Built for the field.
WellCalc is the professional petroleum engineering calculator built for oil and gas field professionals. With 97 specialized calculations across 16 engineering categories, WellCalc puts every formula you need right at your fingertips.
CATEGORIES INCLUDE:
- Well Control: Kill sheets, hydrostatic pressure, ECD, MAASP, formation pressure, influx analysis
- Drilling: ROP, cost per foot, hydraulics optimization
- Cementing: Slurry volume, displacement, centralization
- Directional: Minimum curvature, build rate, tortuosity
- Production: IPR analysis, nodal analysis, flow correlations
- Reservoir: Darcy flow, material balance, skin analysis
- Hydraulics: Bit hydraulics, pressure loss, flow regime
- Completions: Perforation design, gravel pack sizing
- Artificial Lift: Rod pump, gas lift, plunger lift
- Well Testing: Buildup, drawdown, skin analysis
- Economics: Decline curves, NPV, payout analysis
- Casing Design: Burst, collapse, tension calculations
- Pipe & Annular: Capacity, displacement, volume calculations
- Pumps: Pump output, efficiency, hydraulic horsepower
- Mud Engineering: Density, viscosity, solids control
- Unit Conversion: Oilfield and metric unit conversions
KEY FEATURES:
- 97 field-proven calculations
- Oilfield and metric unit support
- Calculation history with export
- Quick reference tables
- Clean, fast interface designed for field use
SUBSCRIPTION:
WellCalc offers a freemium model with 5 free categories. Unlock all 97 calculators across 16 categories with WellCalc Pro.
- Monthly: $4.99/month
- Yearly: $29.99/year (save 50%)
Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your Account Settings on the App Store after purchase.
Terms of Use: https://tinkers10.github.io/rork-wellcalc/terms-of-service.html
Privacy Policy: https://tinkers10.github.io/rork-wellcalc/privacy-policy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Ryan Tinklepaugh, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ryan Tinklepaugh
- Size
- 16 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- WellCalc Pro Yearly $29.99
- WellCalc Pro Monthly $4.99
- Copyright
- © 2026 Ryan Tinklepaugh