Staircase Calculator
Lifestyle Tools2h+g comfort rule, slope check
Quick Answer
Staircase Calculator: 2h+g comfort rule, slope check. Staircase Calculator uses standard everyday life formulas to compute accurate results instantly.
mm
mm
Building type (code limits)
Risers needed
18 risers
rise 166.7mm × tread 270mm · 31.7°
Rise h166.7 mm
Tread checkOK
Stair run4.59 m
Blondel 2h+b603 mm
Comfortable (Blondel 600-640)
Calculation steps
- 1Risers: N = ceil(floor height ÷ max rise) = ceil(3000 ÷ 175) = 18; actual rise = 3000 ÷ 18 = 166.7 mm
- 2Treads = N − 1 = 17 (top riser is the landing); run = 17 × 270 = 4590 mm
- 3Slope angle = atan(166.7 ÷ 270) = 31.7°; Blondel 2h+b = 2×166.7 + 270 = 603 mm
Alternative riser counts
| Risers | Rise mm | Angle | Blondel | Code |
|---|---|---|---|---|
| 17 | 176.5 | 33.2° | 623 | Exceeds 175mm |
| 18 | 166.7 | 31.7° | 603 | OK |
| 19 | 157.9 | 30.3° | 586 | OK |
Ideal stair angle is 30-35°; above 38° feels steep, below 27° wastes space. Blondel's rule (2×rise + tread = 600-640mm) matches average human stride of ~63cm. Keep riser height constant — a deviation over 5mm is a trip hazard.
Was this tool helpful?
How to Use
- Enter scenario values: fill real-life numbers into the Staircase Calculator (defaults work for a quick try).
- Instant results: everything computes live, no button needed.
- Read the advice: results come with practical tips, reference standards and pitfalls.
- Compare options: adjust parameters to compare choices side by side.
Key Points
- Staircase Calculator is a free online everyday life tool — open and use, no sign-up.
- All calculations run locally in your browser; your data never leaves the device.
- Key capability: 2h+g comfort rule, slope check.
- Results come with formulas and reference tables so you can verify every number.
Formula & How It Works
Staircase Calculator formula
Staircase Calculator uses standard everyday life formulas to compute accurate results instantly.
FAQ
How do I use the Staircase Calculator?
Open the page and fill in the input fields — results update automatically. 2h+g comfort rule, slope check.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.
Related Tools
Medical Treatment Period Calculator
3-24 months by dual tenure tiers, rolling cycleMedical Insurance Reimbursement Calculator
Deductible, rate and annual cap three-segment modelTea Leaf Ratio Calculator
Leaf dose from water volume across 7 tea typesCarbon Footprint Calculator
Grid factor 0.5703 kg/kWh, 9 activity factorsBill Splitter
Split group expenses — who pays whomMobile Data Usage Calculator
Estimate monthly data by activityPhone Plan Comparison
Compare plans side by side — real monthly costDiscount Calculator
Sale price, original price and discount rateRelated Guides
Source & Updates
Based on common formulas and industry conventions. Last updated: 2025-07
Last updated:
Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.
Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.
Cite this page: YiJianSuan. Staircase Calculator[EB/OL]. https://www.yijiansuan.com/en/c/life/staircase
Results provided by this tool are for reference only and do not constitute professional advice.