Instantly look up KS pipe specs, calculate slope drop, and estimate water volume for hydro testing. Mobile-optimized for field workers.
Material
Nominal Size
Schedule
100A ยท SCH40Carbon
Outside Diameter (O.D)114.3mm
Thickness (t)6.02mm
Inside Diameter (I.D)102.26mm
Weight per meter16.07kg/m
Inner cross-section area8,213mmยฒ
Inch size4"
โ ๏ธ Results are based on KS/JIS standards and are for reference only. Always cross-check with design drawings and on-site supervision before construction.
The Piping Calculator combines three field-essential tools into one mobile-friendly app: KS pipe spec lookup, slope drop calculation, and hydro test water volume estimation. Carbon steel pipes (KS D 3562 / SPPS) and stainless steel pipes (KS D 3576 / SUS304) are fully covered, with outside diameter, wall thickness, inside diameter, and per-meter weight available at a single tap. The slope tab instantly calculates the start-to-end drop for sewage, AC drain, and storm drain pipes given a length and slope ratio. The hydro test tab estimates the required water volume (mยณ, liters) and weight (tons) for pressure testing, even recommending the appropriate water truck size. All pipe spec data is hardcoded โ the tool works fully offline once loaded, ideal for basement construction sites or remote work environments without reliable internet.
Common Use Cases
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On-site KS Spec Lookup
Replace the laminated KS spec sheet in your pocket. Select nominal size and schedule to instantly view OD, thickness, ID, and weight before welding or fitting selection.
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Sewage & AC Drain Slope
Enter total pipe length and slope ratio (1/100, 1/200, etc.) to get the exact mm drop from start to end. Built-in field presets for sewage, storm, and AC drain installations.
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Hydro Test Truck Prep
Calculate water volume (mยณ, L) and weight (tons) for pressure testing completed piping. Receive an automatic recommendation for the correct truck size to dispatch.
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Works Offline on Site
All KS spec data is bundled in the app โ once loaded, it works in basements, tunnels, and remote sites without internet. Just bookmark it on your phone browser.
How to Use
1
Pick a Tab
Choose between Spec Lookup (KS sizing), Slope (drop calculation), or Hydro Test (water volume) depending on the task at hand.
2
Spec Lookup
Tap the material (Carbon or Stainless), choose the nominal size, then the schedule. OD, thickness, ID, and weight appear instantly in the result card.
3
Slope Calculation
Enter total pipe length in meters and select a slope ratio preset. The exact start-to-end drop in mm appears with field-tested guidance on whether the slope is adequate.
4
Hydro Test Volume
Select the pipe size, enter total length, and pick a safety margin. The tool computes net and total water volume, weight in tons, and recommends the truck size needed.