Engineering Tools
Numbers you can trust.
Marine fabrication calculators — free, metric and imperial, formula shown with every result.
Densities from ASTM A6 / AISC tables. Estimate tonnage, lay out pipe, screen loads, and convert units in seconds. No sign-up, no export paywall.
Weigh any section in seconds
Recommended start
Metal Weight Workbench
One calculator for plate, bar, tube, pipe, and structural section checks.
Plate Weight Calculator
Calculate plate weight, area, and volume from dimensions and grade.
Bar Weight Calculator
Round, square, and hex bar weight with instant surface area outputs.
Pipe Weight Calculator
OD/wall/length-based pipe weight for fabrication and freight planning.
Rectangular Tube Weight Calculator
Rectangular and square tube weight, area, and target-length calculator.
Beam Weight Calculator
AISC beam designation weight checks with quick area approximation.
Channel Weight Calculator
C-channel weight and surface checks from designation and member length.
Angle Weight Calculator
L-angle section weight and area checks from designation and run length.
Lay out pipe runs without redoing the math
Recommended start
Pipe Offset Calculator
Travel and run values from offset geometry and fitting allowance.
Rolling Offset Calculator
True offset and travel for multi-plane pipe routing.
Mitered Joint Calculator
Cut angle, setback, and long-point values for mitered pipe joints.
Fitting Allowance Calculator
Centerline cut length from fitting takeout and count.
Flange Dimensions Lookup
Fast ASME B16.5 flange dimensions for common sizes and classes.
Convert engineering units without leaving the job
Recommended start
Length Converter
Convert length units across metric and imperial systems.
Weight Converter
Convert mass/weight units for estimating and logistics.
Pressure Converter
Convert pressure values between psi, bar, kPa, MPa, and Pa.
Temperature Converter
Convert temperature values between C, F, and K.
Volume Converter
Convert volume across liter, cubic, and US gallon units.
Area Converter
Convert area values for coating, flooring, and planning.
Screen loads before the formal review
Recommended start
Beam Deflection Estimate
Uniform-load beam deflection estimate for early engineering checks.
Barge Stability Estimate
Initial GM estimate for box-barge geometry and KG assumptions.
Crane Load Screening Estimate
Radius/angle-based screening estimate for lift planning checks.
Wind Load Estimate
Projected-area wind force estimate for planning checks.
Turn quantities into a defensible price
Recommended start
Material Cost Estimator
Estimate total material spend from weight, unit rate, and scrap factor.
Coating Cost Estimator
Estimate coating quantity and cost from area, coats, and coverage.
Freight Cost Estimator
Estimate lane freight cost from tonnage, distance, and rate assumptions.
Grade, size, and torque references on one desk
Recommended start
Grade Properties Lookup
Quick density and strength reference by material grade.
Standard Sizes Lookup
Section-size and pipe schedule lookup from designation strings.
Tolerance Reference
General tolerance band lookup by process and nominal size.
Bolt Torque Estimate
Torque estimate from bolt size, grade, and nut factor.