🪨 Stone Weight Calculator
Calculate stone weight based on dimensions and stone type
How to Use This Calculator
Enter Stone Dimensions
Input the length, width, and height/thickness of your stone piece in inches. For countertops, length and width are the surface dimensions, height is the thickness.
Select Stone Type
Select the type of stone (granite, marble, limestone, sandstone, slate, quartz, travertine, soapstone). Different stones have different densities, which significantly affects weight.
Calculate and Review
Click "Calculate Stone Weight" to see stone weight, area, weight per square foot, and weight in tons. Use this information for transportation, handling, and installation planning.
Plan Transportation and Installation
Use the calculated weight to plan transportation, verify equipment capacity, and estimate installation requirements. Heavy stones require proper equipment and careful handling.
Formula
Volume (cu ft) = Length (ft) × Width (ft) × Height (ft)
Convert Inches to Feet: Divide by 12
Stone Area (sq ft) = (Length × Width) ÷ 144
Weight (lbs) = Volume (cu ft) × Density (lbs/cu ft)
Weight per Sq Ft = Thickness (ft) × Density (lbs/cu ft)
Example 1: Granite Countertop (72" × 36" × 1.25")
Step 1: Convert to feet: 72" = 6 ft, 36" = 3 ft, 1.25" = 0.104 ft
Step 2: Calculate volume: 6 × 3 × 0.104 = 1.87 cu ft
Step 3: Calculate area: (72 × 36) ÷ 144 = 18 sq ft
Step 4: Granite density: 168 lbs/cu ft
Step 5: Calculate weight: 1.87 × 168 = 314 lbs
Step 6: Weight per sq ft: 0.104 × 168 = 17.5 lbs/sq ft
Example 2: Marble Slab (96" × 48" × 1.5")
Step 1: Convert to feet: 96" = 8 ft, 48" = 4 ft, 1.5" = 0.125 ft
Step 2: Calculate volume: 8 × 4 × 0.125 = 4 cu ft
Step 3: Calculate area: (96 × 48) ÷ 144 = 32 sq ft
Step 4: Marble density: 170 lbs/cu ft
Step 5: Calculate weight: 4 × 170 = 680 lbs
Step 6: Weight per sq ft: 0.125 × 170 = 21.25 lbs/sq ft
About Stone Weight Calculator
The Stone Weight Calculator is an essential tool for fabricators, contractors, installers, and homeowners who need to accurately determine the weight of stone pieces for transportation, handling, installation planning, and cost estimation. This calculator eliminates guesswork by providing precise weight calculations based on stone dimensions and type, helping you plan logistics and estimate costs accurately.
When to Use This Calculator
- Countertop Installation: Calculate stone weight for kitchen and bathroom countertop installations
- Transportation Planning: Determine stone weight for truck and equipment capacity planning
- Installation Planning: Estimate stone weight for installation equipment and support requirements
- Cost Estimation: Calculate stone weight for pricing and cost estimation
- Fabrication Planning: Calculate stone weight for fabrication and manufacturing projects
Why Use Our Calculator?
- ✅ Accurate Weight Calculation: Precise calculations based on dimensions and stone density
- ✅ Multiple Stone Types: Supports granite, marble, limestone, sandstone, slate, quartz, travertine, and soapstone
- ✅ Weight per Square Foot: Shows weight per square foot for countertop planning
- ✅ Weight in Tons: Displays weight in tons for shipping and large-scale planning
- ✅ Cost Planning: Helps estimate costs based on stone weight
- ✅ Time Savings: Instant calculations eliminate manual math and measurements
Common Applications
Countertop Installation: Fabricators and installers use this calculator to determine stone weight for countertop installations. Accurate weight calculations help plan transportation, equipment capacity, and installation requirements.
Transportation Planning: Contractors and logistics planners use this tool to estimate stone weight for truck loading capacity planning. Heavy stones require proper equipment and careful planning.
Installation Planning: Installers use this calculator to calculate stone weight for installation equipment and support requirements, ensuring safe handling and installation.
Tips for Best Results
- Measure Accurately: Use precise measurements for length, width, and thickness for accurate calculations
- Stone Type: Different stones have different densities - granite and marble are heavier, travertine and sandstone are lighter
- Thickness Measurement: Measure thickness accurately - standard countertop thickness is 1.25 inches
- Transportation Capacity: Consider equipment and truck capacity limits when planning transportation
- Safety Margins: Add safety margins for equipment capacity to account for weight variations
- Professional Handling: Heavy stones require professional handling and installation equipment
Frequently Asked Questions
How much does a granite countertop weigh?
Granite countertop weight depends on dimensions and thickness. For example, a 72" × 36" × 1.25" granite countertop weighs approximately 314 lbs. Standard countertop thickness is 1.25 inches. Use the calculator with your specific dimensions and stone type.
Which stone is heaviest?
Soapstone is heaviest at 180 lbs/cu ft, followed by slate (175 lbs/cu ft) and marble (170 lbs/cu ft). Granite is 168 lbs/cu ft. Travertine is lightest at 135 lbs/cu ft, followed by sandstone (150 lbs/cu ft).
How do I calculate weight per square foot?
Weight per square foot = Thickness (feet) × Density (lbs/cu ft). For 1.25 inch (0.104 ft) granite: 0.104 × 168 = 17.5 lbs/sq ft. The calculator shows weight per square foot in the results.
Does stone type affect weight?
Yes! Stone type significantly affects weight due to different densities. Granite and marble are heavier than travertine and sandstone. Always specify the correct stone type for accurate weight calculations.
Can I calculate weight for irregular shapes?
This calculator works for rectangular stones. For irregular shapes, calculate the volume manually (approximate as rectangular dimensions) and use the stone density with the calculated volume.
How accurate is this calculator?
This calculator provides accurate estimates based on standard stone densities. Actual weight may vary slightly based on specific stone composition, porosity, and manufacturing process. Use the calculator as a guide and add safety margins for equipment capacity.