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Structural Calculators

Uniformly Distributed Load Calculator

Convert an area load into a line load on a beam, with reactions and the peak moment.

Enter values

Results update as you type.

Result

Line load on the beam

18.4 kN/m

Total load on the span
92 kN
Reaction at each support
46 kN
Maximum bending moment
57.5 kN·m
Tributary area
15 m²

About the Uniformly Distributed Load Calculator

Convert an area load into a line load on a beam, with reactions and the peak moment.

Also known as: udl calculator, line load calculator, tributary width, area load to beam.

How to use this calculator

  1. Enter area load, tributary width, beam span, beam self weight.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

w = area load × tributary width + self weight

Worked example

Using the values pre-filled in the calculator above:

  • Area load = 6 kN/m²
  • Tributary width = 3 m
  • Beam span = 5 m
  • Beam self weight = 0.4 kN/m

the calculator returns:

  • Line load on the beam: 18.4 kN/m
  • Total load on the span: 92 kN
  • Reaction at each support: 46 kN
  • Maximum bending moment: 57.5 kN·m