# API Gravity Calc

> Calculates corrected API gravity and weight for petroleum liquids. (iPhone/iPad app by Bulat Faizullin.)

- Source: https://appshunter.io/ios/app/api-gravity-calc/id1502888308 (this page in markdown: same URL + `.md`)
- Developer: [Bulat Faizullin](https://appshunter.io/developer/373823956)
- Category: Reference, Utilities
- Price: $1.99
- Rating: 1.25/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 0 MB
- Languages: English
- Released: 2020-03-16
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/api-gravity-calc/id1502888308/reviews.md

## What is API Gravity Calc?

The API Gravity Calculator helps to determine the Corrected API at 60 Deg F for Jet A, Diesel and Gasoline. Additionally the app calculate the weight of gas. 

*The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks.

## Key features

- Corrected API gravity calculation
- Jet A, Diesel, Gasoline support
- Gasoline weight calculation
- API gravity density comparison

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/api-gravity-calc/id1502888308/reviews.md

### 1/5 — Piece of crap

*2022-10-06, version 1.0*

Worked a couple of times now nothing

### 2/5 — Bad app

*2022-08-23, version 1.0*

Is only correct once in a while. Still check with Hydrometer as not dependable. Uninstalling

### 1/5 — Not worth it‼️

*2022-04-12, version 1.0*

Only worked once, after I close the app It just kept crashing and won’t open again.

### 1/5 — NotGood

*2021-08-30, version 1.0*

This app does not work….tried opening it but nothing happens..

## Frequently asked questions about API Gravity Calc

### What is API Gravity Calc used for?

API Gravity Calc is used to determine the Corrected API gravity at 60°F for Jet A, Diesel, and Gasoline. It also calculates the weight of gasoline.

### What does API gravity measure?

API gravity is a measure of how heavy or light a petroleum liquid is compared to water. Liquids with API gravity greater than 10 are lighter than water, while those less than 10 are heavier.

### What devices does API Gravity Calc support?

API Gravity Calc is supported on iPhone, iPad, and iPod devices.

### What is the price of API Gravity Calc?

API Gravity Calc costs $1.99 to purchase.

### When was API Gravity Calc last updated?

API Gravity Calc was last updated on March 16, 2020, with version 1.0.

### What is the age rating for API Gravity Calc?

API Gravity Calc has an age rating of 4+.

### Does API Gravity Calc have ads?

No, API Gravity Calc does not contain advertisements.

### What is the user rating for API Gravity Calc?

API Gravity Calc has a rating of 1.3 stars from 4 ratings.

## Version history (last 1 release)

### 1.0 — 2020-03-16

No release notes.

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All apps by Bulat Faizullin: https://appshunter.io/developer/373823956

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*