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Tent Size For Group Calculator

Work out tent size for group instantly with clear inputs, formula shown and shareable results.

About Tent Size For Group Calculator

Internal width is the number of sleepers times their shoulder allowance, plus a strip for gear, and the floor area multiplies that by the sleeping length. Manufacturer capacity ratings assume shoulder-to-shoulder sleeping with no gear, which is why buying one or two sizes above your group size is standard practice.

Formulas

Width needed

width = sleepers x shoulder allowance + gear strip

Floor area

area m2 = width cm x length cm / 10,000

Worked example

With the default values below, Tent Size For Group Calculator returns Internal width needed of 300. Change any input above and every figure here is recalculated in your browser.

Inputs used

Number of sleepersminimum 1
4
Shoulder width allowance eachminimum 30 cm
60 cm
Sleeping length neededminimum 100 cm
200 cm
Include space for gear inside
Yes

Results

Internal width needed
300 cm
Floor area needed
6.000 m2
Floor area per person
1.500 m2
Rated tent capacity to buy
6

Step by step

  1. 1Values used
  2. 2Width needed
  3. 3Floor area
  4. 4Internal width needed= 300 cm
  5. 5Floor area needed= 6.000 m2
  6. 6Floor area per person= 1.500 m2
  7. 7Rated tent capacity to buy= 6

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Tent Size For Group figure worked out?

width = sleepers x shoulder allowance + gear strip. Internal width is the number of sleepers times their shoulder allowance, plus a strip for gear, and the floor area multiplies that by the sleeping length.

Why does this matter?

Manufacturer capacity ratings assume shoulder-to-shoulder sleeping with no gear, which is why buying one or two sizes above your group size is standard practice.

What do I need to enter?

Enter number of sleepers, shoulder width allowance each, sleeping length needed, include space for gear inside. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.

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