Plate Order Weight, Freight and Truckload Calculator
Plates are bought by weight and shipped by weight, so the first question on any order is how many tonnes it is. This calculator gives weight, material cost, freight and a truck count in one step.
Your numbers
Check the legal payload for your route
Your results
Theoretical weight from nominal size and the density selected. Actual mill weight, freight rules and payload limits vary by supplier and route.
Order weight vs plate thickness
Sweeps Thickness from 3 to 40, holding your other inputs fixed.
Price orders from ERP vendor data
Optional conversation about using live vendor prices and freight terms in order estimates.
Optional. The tool and every export work without this. No spam.
How to use the calculator
Enter the number of plates, their length, width and thickness in millimetres, then choose the material. Add your price per kilogram, the freight rate per tonne and the truck payload. The result shows the weight per plate, total tonnes, material cost, freight and truckloads. The chart shows how total weight grows as thickness increases, which helps when you are choosing between plate gauges.
- Use nominal dimensions from the order
- Update price per kg for the alloy
- Check payload for your route and truck type
- Round up trucks for partial loads
Formulas used
Plate weight is length times width times thickness times density, divided by one billion when dimensions are in millimetres and density is in kg per cubic meter. A 6000 x 2000 x 12 mm steel plate has a volume of 0.144 cubic meters and weighs about 1130 kg. Total weight is that value times the quantity. Freight is tonnes times the rate, and trucks are the weight divided by payload rounded up to a whole truck.
Reading the result and ordering tips
Delivered cost per kg shows the real price after freight, which is often the number that decides between suppliers. Truckload results should be treated as a weight check only, because plate dimensions may limit how much fits on a trailer, and oversize loads need permits. Mill tolerance can add a few percent to weight on thick plate. When the order lands near the truck limit, small changes in quantity can add a whole extra truck and freight cost.
- Compare suppliers on delivered cost per kg
- Allow for tolerance on thick plate
- Check length limits for transport
- Ask if freight is by weight or by load
Frequently Asked Questions
How do I calculate steel plate weight?
Multiply length, width and thickness in millimetres, divide by one billion to get cubic meters, then multiply by 7850 kg/m3 for carbon steel. A 1 x 1 meter plate at 10 mm thick weighs 78.5 kg.
Does the calculator include cutting or processing?
No. It prices material and freight only. Cutting, edge prep, surface treatment and testing are separate costs and should be added to your quote or purchase request.
What truck payload should I use?
Use the legal payload of the vehicle on your route, which varies by country and trailer type. A common figure for a large flatbed is around 20 to 25 tonnes, but confirm with your carrier.
Why is the delivered price per kg higher than the material price?
Because it includes freight spread across the total weight. The difference grows with distance and shrinks with larger orders. Comparing delivered cost avoids choosing a cheap mill with expensive transport.
If you want orders priced from live ERP vendor and freight data, we can build that as a read-only assistant over your purchasing records.
Related Tools
Steel Plate Cut List Weight Worksheet
Fill a cut list row by row and get piece weight, line weight and total order weight for plate, sheet and flat parts.
Supply Chain & InventoryRound Bar Stock Weight and Quote Worksheet
List round bar items, get weight per length and extended material cost for each line and the whole quote.
Engineering & PLMMaterial Substitution Request Form Template
Record why a material grade is being replaced, compare properties and capture engineering and quality approval.
Quality & InspectionSupplier Incoming Inspection Results Log Worksheet
An editable log of incoming inspection by lot with sample size, defects found and reject rate per lot, plus overall totals for supplier quality reviews.
More Supply Chain & Inventory tools
See all- Filler Metal Consumption Calculator (Wire and Electrodes)
- Oracle Fusion Inventory Turns and Carrying Cost Calculator
- Distribution ERP Fill Rate Calculator
- Distributor Rebate Tracking Worksheet
- Branch Transfer Planning Worksheet
- Distributor Slow-Moving Inventory Review Worksheet
- Distributor Vendor Performance Scorecard Worksheet
- Distributor GMROI Calculator
- Distributor Backorder Cost and Fill Rate Calculator