Stair Length Calculator
Want to build stairs? of course precise measurements are crucial for safety and aesthetics. To simplify this process, you can use this Stair Length Calculator. Simple enter total staircase run (ft) and total number of stairs into the calculator to see stair length (ft).
This calculator is also provide you options for advance calculation, you can switch between basic and advance according to your calculation requirements.
What is Stair Length?
Stair length is the measurement from the first step to the last step, measured along the incline. It’s essential for ensuring your stairs are both functional and safe.
User Guide
To use the calculator, follow these steps:
 Enter the total staircase run (in feet) into the field labeled “Total Staircase Run (ft)”.
 Enter the total number of stairs into the field labeled “Total Number of Stairs”.
 Enter the stair length (in feet) into the field labeled “Stair Length (ft)”.
Example:
 Total Staircase Run: 10 feet
 Total Number of Stairs: 12
 Stair Length: Leave this field blank to calculate it.
How to Calculate Stair Length
To calculate stair length, use the following formula:
Formula:
$SL = \frac{SR}{S}$
Variables:
Variable  Description 

SL  Stair Length (ft) 
SR  Total Staircase Run (ft) 
S  Total Number of Stairs 
Example
1. Given:

 Total Staircase Run (SR) = 10 feet
 Total Number of Stairs (S) = 12
2. Calculate Stair Length (SL):

 Use the formula: $SL = \frac{SR}{S}$
 Plug in the values: $SL = \frac{10}{12}$
 Simplify: $SL = 0.83$feet
So, the stair length is 0.83 feet.
Calculation Examples
1. Basic Calculation
Input  Value 

Total Staircase Run (ft)  10 
Total Number of Stairs  12 
Stair Length (ft)  0.83 
2. Advanced Example:
Input  Value 

Total Staircase Run (ft)  15 
Total Number of Stairs  20 
Stair Length (ft)  0.75 
Importance and Benefits
 Ensures safety
 Provides accurate measurements
 Helps in planning and construction
 Saves time
 Easy to use
FAQs
How long is a 10foot staircase?
For a 10foot staircase with 12 stairs, the stair length is 0.83 feet.
How many stairs for 8 feet?
If each stair is 0.75 feet long, you need about 11 stairs.
How long is a staircase for 3m height?
For a 3meter high staircase (approximately 9.84 feet), with 12 stairs, each stair is about 0.82 feet long.
Final Words
I hope you liked this calculator and guide, please feel free to ask any question regarding this calculator in the comment section, I will glade to reply you.