Aggregate Calculator
The Aggregate Calculator helps you to estimate the neat aggregate tonnage required for your job. To use the Aggregate Calculator, simply enter the width, length, and thickness of your job, and click on whether you are measuring the thickness in feet or inches. Next, click on either Base Rock, Drain Rock, or a custom density selection. The Base Rock and Drain Rock selections will fill in the density of the rock for you; the Custom selection allows you to enter a rock density in the Density field. Finally, click on the "Calculate" button. The calculator will estimate the number of tons of aggregate that will be required.

Please note that densities will vary somewhat, but the default values assigned for subbase stone and drainage stone are good standard "rules of thumb" for estimating.

  Aggregate Calculator  
 
Width
(Feet)
Length
(Feet)
Thickness
Feet
Inches
Density
(lbs/cubic yd)

    Sub Base Stone
Drainage Stone
Custom Density
Total Tons Required:

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Average weights of Building Materials

Material
lbs/CY
Asphaltum 2,187
Clay, Damp, Plastic 2,970
Clay Dry 1,701
Cement, portland, loose 2,430
Common Brick 3,240
Earth - Dry, Packed 2,565
Earth - Loose 2,052
Granite - Ashlar Masonry

4,455

Limestone, Marble - Ashlar Masonry

4,320

Pressed Brick 3,780
Riprap - Limestone 2,160 - 2,295
Sandstone, Bluestone - Ashlar Masonry 3,780
Sandstone, Quarried - Piled 2,214
Sand, Gravel, Dry, Loose 2,430 - 2,835
Sand, Gravel, Dry, Packed 2,700 - 3,240
Sand, Gravel, wet 3,186 - 3,240
Shale - Quarried, Piled 2,484
Soft Brick 2,700
Tar, Bituminous 2,025

 

 

 

 

 

 

 

 

 

 

 

Asphalt Calculator
The asphalt Calculator helps you to estimate the Hot Mix (asphalt) tonnage required for your job. To use the asphalt Calculator, simply enter the width, length, and thickness (in inches) of your job. Next, click on the "Calculate" button. The calculator will estimate the number of tons of Hot Mix (asphalt) that will be required. Note using 2,000 lbs/CY in calculations.

  Asphalt Calculator  
 
Width
(Feet)
Length
(Feet)
Thickness
(Inches)
Hot Mix Tons Required:

Nominal Concrete Strengths - MPa values / PSI Values

In the metric system concrete strength is expressed as megapascals (MPa)
In the imperial system concrete strength is expressed as pounds per square inch (psi)

2500 psi = 18 MPa (17.23 MPa exact)
3000 psi = 20 MPa (20.67 MPa exact)
3500 psi = 25 MPa (24.12 MPa exact)
4000 psi = 30 MPa (27.57 MPa exact)
5000 psi = 35 MPa (34.46 MPa exact)
6000 psi = 40 MPa (41.35 MPa exact)

Use 0.0068915 to convert psi to MPa