LeKe Piping / Technical calculator
Elbow & pipe bend
weight calculator
Estimate theoretical weights for long-radius and short-radius elbows or custom pipe bends. Set radius, angle, wall thickness and optional straight tangents; results update instantly.
Set the bend geometry
Start with a common radius or enter any radius multiple.
Estimated weight
For one piece and the selected quantity.
Drag freely in any direction and scroll to zoom. The smooth hollow model responds to the selected diameter, wall, radius, angle and tangent lengths. It is a geometric visualization, not a fabrication drawing.
Calculation method
R (mm) = NPS (in) × M × 25.4 · 90° elbow weight = (OD − t) × t × K × M × 1.57 × DN / 1000. For other angles, multiply by angle / 90. Bend weight = elbow weight + 2 × tangent × (OD − t) × t × K / 1000. K changes with the selected material; an elbow without tangents is the default.
These are theoretical uniform-wall weights. Bends can thin or ovalize during forming, and fitting end thickness may vary. Use the approved drawing or MTC for final weight.
Ask us to confirm your order
Send NPS or DN, outside diameter, wall or schedule, radius, angle, tangent lengths, material grade, quantity and destination. We can confirm a production drawing and quoted weight.