Angle (Degrees) from Slope Percent Reference Values
Convert slope percent to angle in degrees using angle = arctan(slope% / 100).
Table of Contents
Reference Value Index
This page lists 21 reference values for quick browsing and lookup.
All Reference Values
- -500 percent = -78.690068 deg
- -300 percent = -71.565051 deg
- -200 percent = -63.434949 deg
- -150 percent = -56.309932 deg
- -100 percent = -45 deg
- -75 percent = -36.869898 deg
- -50 percent = -26.565051 deg
- -25 percent = -14.036243 deg
- -10 percent = -5.710593 deg
- -5 percent = -2.862405 deg
- 0 percent = 0 deg
- 5 percent = 2.862405 deg
- 10 percent = 5.710593 deg
- 25 percent = 14.036243 deg
- 50 percent = 26.565051 deg
- 75 percent = 36.869898 deg
- 100 percent = 45 deg
- 150 percent = 56.309932 deg
- 200 percent = 63.434949 deg
- 300 percent = 71.565051 deg
- 500 percent = 78.690068 deg
Reference Table
| Slope Percent | Angle (Degrees) |
|---|---|
| -500 percent | -78.690068 deg |
| -300 percent | -71.565051 deg |
| -200 percent | -63.434949 deg |
| -150 percent | -56.309932 deg |
| -100 percent | -45 deg |
| -75 percent | -36.869898 deg |
| -50 percent | -26.565051 deg |
| -25 percent | -14.036243 deg |
| -10 percent | -5.710593 deg |
| -5 percent | -2.862405 deg |
| 0 percent | 0 deg |
| 5 percent | 2.862405 deg |
| 10 percent | 5.710593 deg |
| 25 percent | 14.036243 deg |
| 50 percent | 26.565051 deg |
| 75 percent | 36.869898 deg |
| 100 percent | 45 deg |
| 150 percent | 56.309932 deg |
| 200 percent | 63.434949 deg |
| 300 percent | 71.565051 deg |
| 500 percent | 78.690068 deg |
Frequently Asked Questions
Frequently asked questions for Angle (Degrees) from Slope Percent and its reference values.
What does the Angle (Degrees) from Slope Percent calculator do?
It helps with converting grade percentages into slope angles for surveying and design.
What formula does the Angle (Degrees) from Slope Percent calculator use?
Angle (degrees) = arctan(slope percent / 100) × 180 / π.
What inputs are valid?
Any finite slope percent value is valid, including negative grades.
When would I use this?
converting grade percentages into slope angles for surveying and design
Methodology and Review
Each row on this page links to a value detail page derived from the same conversion data file as the main calculator and reference table. This reduces inconsistencies across page variants.
Editorial metadata and structured data are rendered across the converter page and linked value pages. Review policies are documented in our review process and editorial policy.