SumHexa — Calculate anything.

Fence post count

Calculate fence post count using the values and assumptions you provide.

Calculate fence post count using the values and assumptions you provide.

Both dots and commas are accepted as decimal separators.

Your inputs stay in your browser. Displayed results are rounded to a maximum of 12 significant digits.

Method and assumptions

Method version 1.0.0 · Updated

Calculate

Formula: Posts = ceiling(length / spacing) + 1

Calculate fence post count using the values and assumptions you provide.

length
Length (m)
spacing
Maximum spacing (m)

Results depend on the assumptions entered; verify professional or safety-critical decisions independently.

Calculate with code

These short examples use the same inputs and core calculation as this tool. Adapt validation and formatting to your application.

JavaScript
const lengthM = 20, maxSpacingM = 2;
console.log(Math.ceil(lengthM / maxSpacingM) + 1); // 11 posts including both ends
TypeScript
const lengthM = 20, spacingM = 2;
const posts: number = Math.ceil(lengthM / spacingM) + 1;
console.log(posts); // 11
Python
import math
print(math.ceil(20 / 2) + 1)  # 11 posts
Java
System.out.println(Math.ceil(20.0 / 2) + 1); // 11 posts
C#
Console.WriteLine(Math.Ceiling(20m / 2) + 1); // 11 posts