Standard Conversion:
- 3 Feet = 1 Yard
- 9 Square Feet = 1 Square Yard
- 27 Cubic Feet = 1 Cubic Yard
- 5,280 Feet = 1 Mile
- 43,560 Square Feet = 1 Acre
- 2000 Pounds = 1 Ton
Area Conversions:
- Length [FT] x Width [FT] = Area [SQFT]
- Area [SQFT] / 9 = Area [SY]
Volume Conversions:
- Length [FT] x Width [FT] x Depth [FT] = Volume [CUFT]
- Volume [CUFT] / 27 = Volume [CY]
Standard Weights:
- Sand = 2,700 LBS per Cubic Yard
- Concrete = 150 LBS per Cubic Foot
- Limerock/Granite GAB = 105 LBS per Inch per Square Yard
- Asphalt = 110 LBS per Inch per SY
- 1 Inch of Asphalt = 110 LBS / SY
- 1.5 Inches of Asphalt = 165 LBS / SY
- 2.0 Inches of Asphalt = 220 LBS / SY
Examples:
Sand – How many tons of sand are needed to fill in a 50 FT x 50 FT area 1 FT Thick?<
- 50 FT x 50 FT x 1 FT = 2,500 CF / 27 = 92.5 CY x 2,700 LBS/CY = 249,750 LBS / 2000 LBS/TON = 125 Tons
Concrete – How Many Cubic Yards of Concrete are needed to fill in a 10 FT x 10 FT area 6 Inches Thick?
- 10 FT x 10 FT x 0.5 FT = 50 CF / 27 = 1.8 Cubic Yards
Limerock/Granite GAB–How many tons of GAB is needed to construct a 10FT wide x 100FT long Driveway 6 Inches thick?
- Area[SY] x Thickness[Inch] x 105 LBS / 2000 = Tons of GAB
- 10 FT x 100 FT = 1,000 SQFT / 9 = 111 SY x 6 IN x 105 LBS / 2000 = 35 TONS
Asphalt – How Many Tons of Asphalt is needed to pave 1 Mile of Road 24 FT wide with 2 Inches of Asphalt?
- 1 Mile x 5,280 LF/Mile = 5,280 LF x 24 FT = 126,720 SF / 9 = 14,080 SY x 2 Inches x 110 LBS / 2000 = 1,548 Tons