# KNF Calculator — KNF + JADAM Formula Calculator

> Instant dilution calculator for KNF and JADAM natural farming formulas. (iPhone/iPad app by Weston Robbe.)

- Source: https://appshunter.io/ios/app/knf-calculator/id6758053981 (this page in markdown: same URL + `.md`)
- Developer: [Weston Robbe](https://appshunter.io/developer/1870616415)
- Category: Productivity, Reference
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: English
- Released: 2026-01-22
- Data updated: 2026-07-23
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/knf-calculator/id6758053981/reviews.md

## What is KNF Calculator?

Tired of carrying a calculator into the field or struggling with complex spreadsheets just to mix your inputs? Find yourself second-guessing your math when it’s time to dilute your BRV, FPJ, or OHN?

The KNF Calculator is built for those who want to spend more time with their plants and less time doing math or fiddling with an excel spreadsheet.

With this app, there is no more guesswork and less potential for error. All you have to do is:

- Select your total final volume

- Enter the total volume of solution you need.

- Get the exact measurement for your input instantly.

Whether you are mixing a 1-liter spray bottle or a 1,000-gallon fertigation tank, the app does the rest of the work for you.

Why Choose Natural Farming Calculator?

- Instant Ratios: Get correct dilutions for all major KNF and JADAM formulas in seconds.

- Field-Ready & Offline: No internet? No problem. The app works 100% offline, making it perfect for remote greenhouses and deep-woods farms.

- Total Privacy: We don’t collect your data, track your location, or require a login.

- Lightweight Design: A clean, minimalist interface that won't distract you or drain your battery while you work.

Ready to simplify your regenerative practice? Stop the manual calculations and start growing with confidence. Download the Natural Farming Calculator and let us do the math while you focus on the microbes.

## Key features

- Instant KNF/JADAM formula dilutions
- Field-ready offline functionality
- Total privacy, no data collection
- Lightweight and battery-efficient design
- Supports various total volumes


## Frequently asked questions about KNF Calculator

### What is KNF Calculator used for?

KNF Calculator is used to instantly calculate the correct dilutions for various KNF and JADAM natural farming formulas, such as BRV, FPJ, and OHN. It helps users avoid manual calculations and potential errors when mixing solutions for their plants.

### Does KNF Calculator work offline?

Yes, KNF Calculator is designed to work 100% offline. This makes it ideal for use in remote locations like greenhouses or farms where internet access may be limited.

### What information do I need to enter into KNF Calculator?

To get an instant dilution measurement, you need to select your total final volume and enter the total volume of solution you require. The app then calculates the exact measurement for your input.

### Does KNF Calculator collect user data?

No, KNF Calculator prioritizes user privacy. The developers state that they do not collect your data, track your location, or require a login to use the app.

### What devices is KNF Calculator available on?

Based on the provided data, KNF Calculator is currently supported on iPhones. Information about Android availability is not specified.

### How often is KNF Calculator updated?

The app was last updated on January 27, 2026, with version 1.2. This indicates recent development and ongoing support for the application.

### What is the age rating for KNF Calculator?

KNF Calculator has an age rating of 4+, making it suitable for a wide range of users. This rating suggests it contains no mature content.

### Does KNF Calculator have ads?

No, KNF Calculator does not contain advertisements. The app is free to use and does not display any ads to its users.

## Version history (last 4 releases)

### 1.3 — 2026-07-15

Updated UI

### 1.2 — 2026-01-27

Added more support for older versions

### 1.1 — 2026-01-26

Dark-mode support.  Improved readability.

### 1.0 — 2026-01-23

No release notes.

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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 2026-07-23.*