Percent to void ratio
Type a value in % to get it in e instantly.
0.6667e
That's 1.14× as open as loose sand, while soft clay is 1.25× higher. A cubic meter of it could hold about 400 liters of water.
What it means
How much space is in it?
Densities assume a grain density of 2.65 g/cm³, which suits quartz sands and most soils but not iron ores or organic soils.
The math
How to convert % to e
Porosity and void ratio measure the same voids against different denominators: e = n ÷ (1 − n) and n = e ÷ (1 + e), with n as a fraction.
Example: 40 % = 0.666667 e.
Every unit
Your porosity in every unit
Tables
% to e conversion table
| % | e |
|---|---|
| 1 % | 0.010101 e |
| 5 % | 0.0526316 e |
| 10 % | 0.111111 e |
| 20 % | 0.25 e |
| 26 % | 0.351351 e |
| 30 % | 0.428571 e |
| 40 % | 0.666667 e |
| 47 % | 0.886792 e |
| 50 % | 1 e |
| 60 % | 1.5 e |
| 80 % | 4 e |
e to % conversion table
| e | % |
|---|---|
| 1 e | 50 % |
| 5 e | 83.3333 % |
| 10 e | 90.9091 % |
| 20 e | 95.2381 % |
| 26 e | 96.2963 % |
| 30 e | 96.7742 % |
| 40 e | 97.561 % |
| 47 e | 97.9167 % |
| 50 e | 98.0392 % |
| 60 e | 98.3607 % |
| 80 e | 98.7654 % |
Quick answers
Quick answers
- How many e is 1 %?
- 1 % is 0.010101 e.
- How many e is 10 %?
- 10 % is 0.111111 e.
- How many e is 40 %?
- 40 % is 0.666667 e.
The units
About these units
Percent (%)
Voids as a percentage of the total volume.
Void ratio (e)
Voids over solids. The soil engineer’s measure.
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