Jar Test Results Analyser and Converter

section 1

When you perform your "Jar Settlement Test" the readings are "inches" not "percents". The Soil Triangle Charts (below) require percentages of each type soil particle (sand, silt or clay). To learn about performing the Jar Test
click here:

This "Converter" will take your measurements in inches (and tenths) and provide not only the percentage of each particle, but the final SOIL COMPOSITION results. You can use these results to read either chart, or simply takes the particle percents to enter into the irrigation matching calculators. (the same result as the chart!). You can then use this "Type of Soil" description to select your soil type in the Garden Calculator.

After measurement data entry and activating the Calculator, read the results in sections 3 & 4, then advance to section 5 - to copy the results to your clipboad before returning to the Irrigation & Soil Matching Calculator.

Enter height (ex: 7.5 inches) of

Enter height (ex: 7.0 inches) of
SILT and SAND:        

Enter height (ex: 5.5 inches) of
SAND (only):              
section 2

1/8 = .125
1/4 = .250
3/8 = .375
1/2 = .500
5/8 = .625
3/4 = .750
7/8 = .825

Click to calculate Particle Percentages

Reset input data to start over

section 3

Percent of Silt is:        
Percent of Clay is:       
Percent of Sand is:      

Soil Category is:
Note; Soil Moisture movement rates vary
as much as 1,000% within same Category
section 4

Moisture movement rate at Soil Saturation

section 5

Click to copy text to Clipboard.
Results on this page will clear!
But exist on clipboard for use in
Associated Irrigation Matching Calculator.
Where you will find a "paste" button
for inserting this Jar Test data.