1. Enter Data
Enter project data such as elevations, distance, area, rainfall intensity, population, wastewater assumptions, diameter, slope and pipe material.
Cost Calculators
Quantity takeoff, unit price and cost estimate tools will be added here.
Coming Soon
This section is reserved for the next development phase.
This section is reserved for the next development phase.
Pipe Pressure Drop Calculator
Use Darcy–Weisbach to calculate friction loss, velocity, Reynolds number, friction factor, head loss per km and pressure drop in pressurized water pipelines.
Velocity0,00 m/s
Reynolds number0
Darcy friction factor0,0000
Friction loss per km0,00 m/km
Friction head loss0,00 mSS
Minor loss0,00 mSS
Total dynamic loss0,00 mSS
Pressure drop0,00 bar
Required head incl. static elevation0,00 mSS
hf = f · (L/D) · V²/(2g) · hm = ΣK · V²/(2g) · Δp ≈ ρg·h
For laminar flow, f = 64/Re; for turbulent flow, the Swamee–Jain approximation is used. Material roughness values are typical preliminary defaults and may vary with manufacturer, age, lining and operating condition. Verify actual inside diameter, manufacturer roughness, fittings/minor-loss coefficients and operating conditions for final design.
Pipe Volume & Cross-Section Calculator
Calculate pipe cross-sectional area, capacity per metre and total internal volume from inside diameter, or calculate partial volume and pipe material volume.
Internal cross-sectional area0,0000 m²
Internal cross-sectional area0,00 cm²
Volume per metre0,00 L/m
Total internal volume0,00 m³
Total capacity0,00 L
A = πD²/4 · V = A × L · 1 m³ = 1000 L
Full volume0,00 m³
Volume at selected fill0,00 m³
Capacity at selected fill0,00 L
Fill ratio%0,0
In this mode, the fill percentage is applied as a volume percentage: Vpartial = Vfull × Fill/100
Material cross-sectional area0,0000 m²
Internal void area0,0000 m²
Pipe material volume0,0000 m³
Internal void volume0,0000 m³
Amaterial = π(Dout² − Din²)/4 · Vmaterial = Amaterial × L
Partial-fill mode uses volume percentage. For hydraulic partial-flow area or discharge calculations, use the Manning or sewer tools.
Stair Calculator
Find suitable riser and tread dimensions from floor height or check an existing stair for comfort, angle and developed length.
Recommended risers0
Actual riser height0,00 cm
Recommended tread depth0,00 cm
Number of treads0
Stair angle0,00°
Total developed horizontal run0,00 m
2R + T comfort check—
R = Floor height / number of risers · T = target Blondel − 2R · Comfort check: 2R + T
Actual riser height0,00 cm
Number of treads0
2R + T0,00 cm
Stair angle0,00°
Total developed horizontal run0,00 m
Approx. sloping flight length0,00 m
Comfort assessment—
This tool is for preliminary geometric design and checking. Final stair design must also comply with applicable building, fire, accessibility and safety requirements for width, headroom, landings and guards.
Road Material Calculator
Calculate volume and tonnage for fill, sub-base, road base, stabilized material, gravel or custom pavement layers from road length and width.
| Layer | Thickness (cm) | Density (t/m³) | Loose / placement factor | Allowance (%) |
|---|
Road area0,00 m²
Total compacted volume0,00 m³
Total loose / placed volume0,00 m³
Net total tonnage0,00 ton
Total order incl. allowance0,00 ton
Density and placement factor vary with material type, moisture, gradation and compaction. Default values are for preliminary estimates; use project and laboratory data for final quantities.
Curb Calculator
Calculate curb unit quantity, allowance and optional concrete bedding volume from a total curb line or a rectangular perimeter.
Net curb quantity0 adet
Curbs incl. allowance0 adet
Total curb line0,00 m
Concrete bedding0,00 m³
Net units = Line length / unit length · With allowance = Net × (1 + Allowance/100) · Concrete = Line × Width × Thickness
Calculated curb line0,00 m
Net curb quantity0 adet
Curbs incl. allowance0 adet
Concrete bedding0,00 m³
Actual curb unit length, joint allowance and manufacturing tolerances vary by product. Check manufacturer dimensions and site cutting losses before ordering.
Paver Calculator
Calculate required paving block quantity, approximate pallet count and optional bedding sand volume from the paved area.
Paved area0,00 m²
Net paver quantity0 adet
Pavers incl. allowance0 adet
Approx. pallets0 palet
Pavers per m²0,00 adet/m²
Bedding sand volume0,00 m³
Area = L × W · Paver area = a × b · Net quantity = Area / paver area · With allowance = Net × (1 + Allowance/100)
Net paver quantity0 adet
Pavers incl. allowance0 adet
Approx. pallets0 palet
Joint widths, paver geometry and pallet quantities vary by product. For final ordering, use the manufacturer's technical data and site-specific cutting losses.
Steel Section Weight Calculator
Calculate mass per metre, piece weight and total tonnage for standard rolled sections or common geometric steel shapes.
Selected section—
Mass per metre0,00 kg/m
Weight per piece0,00 kg
Total weight0,00 kg
Total tonnage0,000 ton
Total length0,00 m
Section area0,00 mm²
Mass per metre0,00 kg/m
Weight per piece0,00 kg
Total weight0,00 kg
Total tonnage0,000 ton
Standard section mode uses nominal catalogue kg/m values. Geometric mode neglects corner radii and manufacturing tolerances and provides a theoretical preliminary result for custom dimensions.
Asphalt Calculator
Calculate asphalt volume and approximate tonnage from road length, width, compacted thickness and density. Use single-layer or multi-layer mode.
Paved area0,00 m²
Asphalt volume0,00 m³
Net asphalt quantity0,00 ton
Asphalt incl. allowance0,00 ton
Approx. asphalt per m²0,00 kg/m²
Area = L × W · Volume = Area × Thickness/100 · Tonnage = Volume × Density · With allowance = Tonnage × (1 + Allowance/100)
| Layer | Thickness (cm) | Density (t/m³) |
|---|---|---|
| Wearing course | ||
| Binder | ||
| Bituminous base |
Wearing course tabakası0,00 ton
Binder course0,00 ton
Bituminous base0,00 ton
Net total0,00 ton
Total incl. allowance0,00 ton
Density varies with mix type and compaction. The default 2.40 t/m³ is an approximate preliminary value; use the project or mix-design density for final quantities.
Side Slope Calculator
Calculate side-slope length, horizontal run, H:V ratio, percent grade and angle from slope ratio, dimensions or angle.
Horizontal run H0,00 m
Slope face length0,00 m
Slope angle0,00°
Percent grade%0,00
H = V × (H:V ratio) · L = √(H² + V²) · Angle = arctan(V/H)
H:V ratio1,50:1
Slope face length0,00 m
Slope angle0,00°
Percent grade%0,00
H:V = H / V : 1 · L = √(H² + V²) · Grade (%) = 100 × V/H
Horizontal run H0,00 m
H:V ratio1,50:1
Slope face length0,00 m
Percent grade%0,00
H = V / tan(α) · L = V / sin(α) · H:V = H/V : 1
This tool performs geometric slope calculations only. Whether a soil or rock slope is safe depends on material properties, groundwater, loads, stratification and a proper stability analysis.
Terrain Slope / Elevation Calculator
Calculate terrain slope between two elevations, find a target elevation from grade and distance, or calculate the horizontal distance required for a given elevation difference and grade.
Elevation difference (End − Start)0,000 m
Eğim%0,00
Slope angle0,00°
Grade ratio1:∞
Direction—
Grade (%) = 100 × (End elevation − Start elevation) / Horizontal distance · Angle = arctan(Δh / L)
Elevation change0,000 m
Target elevation0,000 m
Description—
Target elevation = Başlangıç kotu + Distance × Eğim / 100
Required horizontal distance0,00 m
Slope angle0,00°
Distance = |Kot farkı| × 100 / |Grade (%)|
Use horizontal distance rather than slope distance. Positive grade means rising terrain; negative grade means falling terrain.
Excavation Calculator
Calculate in-situ excavation volume, loose haul volume after swell, and required truck trips from excavation dimensions.
In-situ excavation volume0,00 m³
Loose haul volume0,00 m³
Volume increase0,00 m³
Required truck trips0 trips
V = Length × Width × Depth · Vloose = V × (1 + swell/100) · Trips = ⌈Vloose / truck capacity⌉
Swell values are preliminary defaults. Verify actual soil classification, loading conditions and truck limits for the project. Sloped excavations require the actual geometry.
Cut and Fill Calculator
Calculate cut, fill, net earthwork and approximate loose haul volume from existing ground and design elevations using the Average End Area method.
| Station (m) | Existing elev. | Design elev. | Formation width | Status |
|---|
Total cut0.00 m³
Total fill0.00 m³
Net volume (Cut − Fill)0.00 m³
Loose haul volume0.00 m³
Total alignment length0.00 m
A = b·h + m·h² · V = L·(A₁+A₂)/2. A zero-depth point is interpolated where the alignment changes between cut and fill.
For preliminary quantity checks. Final quantities should use actual cross-section geometry and project-specific geotechnical assumptions.
Stormwater Runoff Calculator
Calculates peak runoff using the Rational Method.
Sewer Sizing Calculator
Enter the design population directly or project it to a target year; then calculate wastewater flow and a preliminary sewer pipe diameter.
Default per-capita flow, peak factor, minimum diameter, depth ratio and velocity criteria can be changed by the user. Final design must follow the relevant authority requirements and project criteria.
Hydraulics
Uses Manning's equation to calculate full-flow capacity or actual partial-flow conditions for a given inflow.
Pipe Sizing
Selects the first suitable standard pipe diameter based on design flow, slope and pipe material.
Concrete Calculator
Calculates net concrete volume and order quantity including waste for foundations, slabs, columns, beams and walls.
Rebar Weight Calculator
Fill in the first rebar row; use Add Row to enter additional diameters or bar lengths.
Formwork Calculator
Calculates approximate formwork area for foundations, columns, beams, walls and slabs.
Masonry Calculator
Calculates masonry area, volume and approximate unit quantity.
Pipe Slope
Calculates pipe slope from upstream and downstream invert elevations.