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Free slope percentage calculator to easily calculate slope, angle, and steepness using rise and run. Accurate, simple, and easy to use.
A slope percentage calculator helps you understand how steep a surface is. It shows how much height increases over a horizontal distance. This is useful in construction, road design, ramps, landscaping, and engineering work.
We developed this slope percentage calculator so users can easily calculate slope without doing manual math. You only need the rise and run. The calculator gives instant and accurate results.
This tool works for students, engineers, builders, and anyone who needs quick slope calculations.
Slope percentage tells you how steep something is by comparing vertical change to horizontal distance. It is expressed as a percentage instead of an angle.
A small percentage means a gentle slope. A higher percentage means a steeper slope.
Slope percentage is commonly used for roads, driveways, wheelchair ramps, roofs, and drainage systems.
The slope percentage formula is simple and accurate.
Slope Percentage = (Rise ÷ Run) × 100
Rise means the vertical height change.
Run means the horizontal distance.
This formula is used in engineering, surveying, and construction worldwide.
The calculator instantly shows slope percentage, slope angle in degrees, and slope ratio.
No manual calculation is required.
Suppose the rise is 2 meters and the run is 100 meters.
Using the formula:
Slope Percentage = (2 ÷ 100) × 100
Slope Percentage = 2%
This means the surface rises 2 units for every 100 units of horizontal distance.
This is considered a very gentle slope.
A 2% slope means the surface rises 2 units for every 100 units of run.
For example, if the run is 50 feet, the rise will be 1 foot.
This type of slope is common for drainage and accessible walkways.
A 2% slope is very gentle. It is barely noticeable when walking or driving.
It is safe for pedestrians, bicycles, and wheelchair ramps when designed properly.
Many building codes recommend slopes close to 2% for water drainage.
A 3% slope equals approximately 1.72 degrees.
This is calculated using trigonometry where the angle equals the inverse tangent of rise divided by run.
Even at 3%, the slope still feels gentle and is suitable for roads and driveways.
A 5% slope means a rise of 5 feet for every 100 feet of horizontal distance.
If the run is 20 feet, the rise will be 1 foot.
A 5% slope is noticeable but still manageable for vehicles and walking paths.
Our slope percentage calculator is fast, accurate, and easy to use.
It supports multiple units and converts them correctly before calculation.
It also shows slope angle in degrees, which many users find helpful.
This tool eliminates errors and saves time.
A slope percentage calculator is the easiest way to measure slope accurately. It removes guesswork and manual math.
Our calculator is designed for simplicity and precision. Anyone can use it without technical knowledge.
If you need to calculate slope percentage quickly and correctly, this tool is the perfect solution.
Slope percentage is used in construction, road design, ramps, roofs, and landscaping to measure steepness.
Yes, slope percentage can exceed 100%, which means the slope is steeper than a 45-degree angle.
Slope percentage is easier to understand for practical applications, while slope angle is used in technical calculations.
Yes, the calculator supports feet, meters, inches, and other units with automatic conversion.