Handy Measurement Equivalents & Material Weights

Here’s a dandy little set of measurement equivalents and material weights that are worth printing out & keeping near your work area. Especially handy for smaller batches of mixtures. Even more so if (like me) you wind up using various kitchen implements to do much of your mixing.


Kitchen Measure
Conversion Chart 

Cup      =     Fluid OZ     =     TBSP      =      TSP     =      Milliliter


 1 C                 8 oz                16 Tbsp           48 tsp           237 ml


 3/4 C              6 oz                12 Tbsp           36 tsp           177 ml


 2/3 C              5 oz               11 Tbsp            32 tsp           158 ml


 1/2 C              4 oz                8 Tbsp             24 tsp           118 ml


 1/3 C              3 oz                5 Tbsp             16 tsp             79 ml


 1/4 C              2 oz                4 Tbsp             12 tsp             59 ml


 1/8 C              1 oz                2 Tbsp              6 tsp              30 ml


 1/16 C           .5 oz                1 Tbsp             3 tsp               15 ml


 

Weight of Common Materials Per Cubic Foot

It should be noted that there is a significant difference between dry and wet materials. This is important because you need to take it into account when calculating how much “added” water will be required. You need to make an allowance for what is already there. The most common problems involve wet sand. As you can see below, there can be as much as 30 pounds of water in a cubic foot. That’s a lot of water. If you have a Hydrometer (I don’t), you can tell exactly how much is present. Without one you will have to guess, so begin by holding back about 50% of your added water…then slowly add more until the physical consistency looks and feels right.

 

Portland Cement – 94 lbs.

Basic Concrete (cured & dry) – 150 lbs.

Water – 62.42 lbs.  (or 8.33 pounds per US gallon)

Sand, Loose Dry – 90 lbs.

Sand, Loose Wet – 120 lbs.

Sand, Packed Wet – 130 lbs.

Sand, Torpedo, Settled Dry – 100 lbs.

Gravel, Loose, Dry – 95 lbs.

Gravel, Dry 1/4 to 2 inch – 105 lbs.

Gravel, Wet 1/4 to 2 inch – 125 lbs.

Fly Ash – Approx. 80 to 85 lbs. (depends on grade & fineness)

Peat, Dry  – Approx. 25 lbs.

Perlite, Dry Expanded – 2 to 25 lbs. (depends on grade & fineness)

Perlite, Horticultural Grade, (saturated & drained)  – 32.5 lbs.

Vermiculite, Horticultural, Dry – 4 to 6 lbs.