Hampton E85 Mix Calculator
Calculate your mix on the go!
Only for iPhone
$2.99
iPhone
Nail your ethanol blend every time.
Stop guessing at the pump. The Hampton E85 Calculator gives you the exact gallons of E85 and pump gas to add for any target ethanol blend — from E30 to E85.
Enter your tank size, current fuel level, and target mix
Get precise fill amounts instantly
See your estimated octane rating
Works offline, no signal needed at the pump
Fuel level helper estimates your tank from miles-to-empty
Adjustable ethanol and octane defaults for your region
Built by Hampton Tuning and real-world tested by enthusiasts. Whether you're on a flex fuel tune or dialing in a specific blend, this is the only tool you need at the pump.
Ratings & Reviews
Added instructions, details "info button".
The developer, Daniel Hampton, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Daniel Hampton
- Size
- 5.8 MB
- Category
- Productivity
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Hampton Tuning
