Convert from rise/run
Inntak rise=0.12m, run=3.0m
Úttak 4.00%, 2.29°, up 1:25.0
Slope Grade Reiknivél (Rise/Run, %, Degrees, 1:n)
Convert rise/run, percent, degrees, and 1:n from any single inntak mode.
All úttaks are shown together with per-niðurstaða copy actions, so svið use and handoff stay fast.
Switch across four inntak modes instantly
View m/mm, ft/in, and 1:n in one skjár
Copy each niðurstaða with one click
How to use
- Choose an inntak mode: rise/run, percent, degrees, or 1:n.
- Set unit kerfi and display unit (m/mm or ft/in).
- Enter a value and check all converted úttaks in the niðurstaða cards.
- Copy the needed format or copy a shareable link.
Sample
Convert from percent
Inntak 2.5%
Úttak 1.43°, up 1:40.0, rise/run=0.025
Formulas
- g = rise / run
- percent = g × 100
- degrees = atan(g) × (180 / π)
- for 1:n, n = 1 / |g|
Reference: drainage and practical notes
- For drainage surfaces, around 1-2% is often cited as a rough reference.
- Recommended values vary by use case, finish, and local standards.
- Always prioritize verkefni requirements, codes, and official specifications.
Algengar spurningar
What is the difference between percent and degrees?
Percent is rise over horizontal run, while degrees is angular measure. They may feel close at small values, but they are not the same quantity.
How should I read 1:n?
It means a rise (or fall) of 1 unit for every n units of horizontal run.
How is negative slope handled?
Percent and degrees are shown with sign, while 1:n is shown with a downhill label.
Why can't I enter 90°?
Because tan(90°) diverges, which corresponds to run=0 and cannot be represented in this verkfæri.
Can I view mm/m or in/ft style úttaks?
Yes. Use the mixed-unit presets in Advanced and choose mm/m or in/ft.