Free · Everyday planning calculators

Table Seating and Whole-Table Count

Estimate seats along table edges and the number of whole tables needed for guests.

  • Formula & worked example
  • Private in your browser
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

A 240 cm rectangular table seats eight along its long edges; 25 guests need four such tables.

Rectangular seats = 2 floor(length / seat pitch); round seats = floor(circumference / rim pitch)

Worked example

Enter these known values and leave the other values blank.

I want to know...
How many tables do I need
Table shape
Rectangular
Length (b)
240 cm
Total number of guests
25
How many tables I need
4

Assumptions and limitations

  • Rectangular seating uses a locked 60 cm pitch along each long edge; the head-seat display adds two. Round seating uses a locked 70 cm rim pitch. These are layout estimates and omit chair width, aisle clearances and accessibility requirements.

Common questions

What does this estimate assume?

Rectangular seating uses a locked 60 cm pitch along each long edge; the head-seat display adds two. Round seating uses a locked 70 cm rim pitch. These are layout estimates and omit chair width, aisle clearances and accessibility requirements.

Can I find a missing input?

Clear the unknown field and enter compatible known values. The controls retain supported inverse calculations, while rounded counts and one-way outputs stay directional.

References

Guest counts must be whole numbers; capacities and whole-table ceilings retain their source arithmetic. Integer membership is checked with isInteger, so ordinary, tiny and large fractional counts are rejected even when tolerant floor equality would pass.

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