Answer Page
20‰ Slope In Degrees
Transport and drainage specs often use permille, while presentations may use degrees.
Interactive Slope Calculator
Enter rise and run values to compare slope formats.
Percent
Degrees
Worked Steps
- 20‰ = 20 / 1000 = 0.02 grade
- Angle = arctan(0.02)
- Angle ≈ 1.1458°, which rounds to 1.146°
FAQ
- What is 20‰ as percent grade?
2%.
Practical Context
How this exact question appears in real work and what the result helps you decide.
Example 1: Design Review Translation
Who Asks This Question?
Civil and rail teams ask this when a slope is defined as 20‰ but stakeholders request angle terms. For this exact query: How steep is a 20 permille slope in degrees?
What This Answer Tells You
The answer gives the equivalent angle, about 1.146°, so drawings and reports can use the same slope in different formats. For this case: 20‰ is about 1.146 degrees.