# Coolant Mix Ratio Calc — Antifreeze Freeze Point Tool

> Antifreeze Freeze Point Tool (iPhone/iPad app by Shanghai Sheyuan Network Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/coolant-mix-ratio-calc/id6761159990 (this page in markdown: same URL + `.md`)
- Developer: [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858)
- Category: Utilities, Productivity
- Price: $1.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English
- Released: 2026-03-26
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/coolant-mix-ratio-calc/id6761159990/reviews.md

## What is Coolant Mix Ratio Calc?

Not sure how much coolant concentrate to pour for your target freeze protection? Coolant Mix Ratio Calc tells you the exact amount of antifreeze and water needed for any cooling system — no more guessing at ratios.

Enter your cooling system capacity, desired protection level, and coolant type. Get precise coolant-to-water volumes, freeze point, and boil-over protection instantly.

COOLANT MIX CALCULATION:
Enter system capacity and desired protection level. The app calculates the exact amount of coolant concentrate and water needed for your target mix ratio. Supports 50/50, 60/40, 70/30, and custom ratios.

GLYCOL TYPE SUPPORT:
- Ethylene Glycol — standard automotive antifreeze, maximum freeze and boil protection
- Propylene Glycol — low-toxicity alternative, safer for pets and the environment

FREEZE AND BOIL PROTECTION:
View freeze point and boiling point protection for any concentration. Know exactly how much protection your current mix provides and what you need to reach your target temperature.

VEHICLE PRESETS:
Quick-select common vehicle types — Sedan, SUV, Truck, and more — with typical cooling system capacities pre-loaded.

SAE AND METRIC UNITS:
Switch between quarts/gallons with Fahrenheit and liters with Celsius. All inputs and outputs convert automatically.

CURRENT CONCENTRATION ADJUSTMENT:
Already have coolant in the system? Enter your current concentration percentage and the app calculates how much to drain and add to reach your target mix.

Built for automotive technicians, mechanics, and DIY car owners. Works completely offline — no internet required.


## Version history (last 3 releases)

### 1.0.2 — 2026-06-28

Added a More Pro Tools section to discover related field calculators.

### 1.0.1 — 2026-04-14

Bug fixes and performance improvements.

### 1.0 — 2026-03-26

No release notes.

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All apps by Shanghai Sheyuan Network Technology Co., Ltd.: https://appshunter.io/developer/1560626858

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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 2026-07-08.*