- Home
- Health
- Water Softener Guide
- Water Treatment
Private Sewers & Septic Systems
- About Private Sewers Sysytem And Septic Systems
- Lateral Root Notification Program
- Fats, Oil & Grease
- Spills & Black Water Valves
- Help Protect The Enviroment
- Septic Systems
- About
PPM to GPG Calculator: Water Hardness to Grains Conversion
According to research conducted by McGill University, water hardness is measured by the concentration of calcium carbonate per liter in parts-per-million (ppm). It is categorized as soft if less than 60 ppm, moderately hard between 60-120 ppm, and hard if it exceeds 120 ppm.
This blog introduces user-friendly tools for this purpose:
- PPM to GPG Calculator,
- Detailed Water Hardness Conversion Table,
- Manual conversion methods.
PPM to GPG Calculator
Simply the move counter to get the GPG for your PPM
PPM to GPG Water Hardness Table
Parts Per Million (PPM): | Grains Per Gallon (GPG): | Rating |
---|---|---|
1 ppm | 0.06 gpg | Soft |
5 ppm | 0.29 gpg | Soft |
10 ppm | 0.58 gpg | Soft |
15 ppm | 0.88 gpg | Soft |
20 ppm | 1.17 gpg | Soft |
25 ppm | 1.46 gpg | Soft |
30 ppm | 1.75 gpg | Soft |
35 ppm | 2.04 gpg | Soft |
40 ppm | 2.34 gpg | Soft |
45 ppm | 2.63 gpg | Soft |
50 ppm | 2.92 gpg | Soft |
55 ppm | 3.21 gpg | Soft |
60 ppm | 3.51 gpg | Soft |
65 ppm | 3.80 gpg | Moderately Hard Water |
75 ppm | 4.38 gpg | Moderately Hard Water |
80 ppm | 4.67 gpg | Moderately Hard Water |
85 ppm | 4.97 gpg | Moderately Hard Water |
90 ppm | 5.26 gpg | Moderately Hard Water |
100 ppm | 5.84 gpg | Moderately Hard Water |
110 ppm | 6.43 gpg | Moderately Hard Water |
120 ppm | 7.01 gpg | Moderately Hard Water |
130 ppm | 7.59 gpg | Hard Water |
140 ppm | 8.18 gpg | Hard Water |
150 ppm | 8.76 gpg | Hard Water |
160 ppm | 9.35 gpg | Hard Water |
170 ppm | 9.93 gpg | Hard Water |
180 ppm | 10.52 gpg | Hard Water |
190 ppm | 11.10 gpg | Very Hard Water |
200 ppm | 11.68 gpg | Very Hard Water |
250 ppm | 14.60 gpg | Very Hard Water |
300 ppm | 17.53 gpg | Very Hard Water |
350 ppm | 20.45 gpg | Very Hard Water |
400 ppm | 23.37 gpg | Very Hard Water |
450 ppm | 26.29 gpg | Very Hard Water |
500 ppm | 29.21 gpg | Very Hard Water |
Manual Conversion: Understanding the Math
While tools and tables are handy, knowing how to manually convert PPM to GPG can give you deeper insight into your water’s hardness. The process is simple:
- Understand the conversion factor: 1 GPG equals 17.1 PPM.
- Use the formula: GPG = PPM / 17.1.
- Apply the formula:
For example, to convert 100 PPM to GPG: GPG = 100 / 17.1 = approximately 5.85.
This method allows you to calculate the hardness of your water with just basic math, offering a great way to double-check your figures or make conversions on the fly.
Discovering Your Local Water Hardness
With water hardness affecting many U.S. homes, identifying your area’s level is key. Water hardness charts by state or city and local water authorities provide essential data. Visit this Amazing go-to resource on Water Hardness by state and zip-code
Tips for Accurate Water Hardness Measurement
Parts Per Million (PPM) | Grains Per Gallon (GPG) | Water Hardness Rating |
---|---|---|
0-60 Ppm | 0.00 - 3.51 Gpg | Soft Water |
61-120 Ppm | 3.57 - 7.02 Gpg | Moderately Hard Water |
121-180 Ppm | 7.08 - 10.53 Gpg | Hard Water |
181+ Ppm | 10.58+ Gpg | Very Hard Water |
FAQs for PPM to GPG Water Hardness Conversion
1. PPM to Grains Hardness Calculator:
An online tool converting water hardness from PPM to grains per gallon (GPG) for clarity on hardness levels.
2. Convert PPM Hardness to Grains per Gallon:
Use the formula GPG = PPM / 17.1 or an online calculator for instant and accurate conversions.
3. Difference Between PPM Hardness to Grains and PPM to GPG Hardness:
Both terms describe the same process of converting water hardness from PPM to GPG, measuring mineral content.
4. PPM to Grains of Hardness Meaning:
It's converting water hardness from parts per million (PPM) to grains of hardness, indicating mineral concentration.
5. GPG Meaning in Water:
GPG stands for grains per gallon, a measurement unit indicating water hardness based on mineral content per gallon.
6. Using an mg/L to GPG Calculator:
Enter the mineral concentration in mg/L to convert to grains per gallon (GPG), aiding in water treatment processes.