Oddly Measured

How many balls and toys has my dog destroyed?

A running total of your dog's quiet, consistent destructive output.

Real maths • Your answers stay on your device

What you'll need

  • How long you have had your dog
  • Roughly how many toys are destroyed each month
  • Optionally, what one costs to replace

Count anything retired due to structural failure.

What is the usual victim?

Optional extras

Your number appears here.

Answer the questions and press Show me my weird number. Everything is worked out on your own device.

How we work this out

We take your monthly destruction rate and apply it across the whole time you have had your dog. If you tell us what a replacement costs, we multiply that too. If your dog specialises in tennis balls, we also show what that many balls would weigh.

Step by step

  1. Work out destroyed items: years owned × 12 months × items destroyed per month.
  2. Multiply by your average replacement cost, if you supply one.
  3. For tennis balls, multiply by 57.7 g, the midpoint of the ITF approved mass range.

What this does not claim

  • Your monthly rate is applied evenly. Puppies and senior dogs tend to have very different output.
  • The tennis-ball mass is a single illustrative value taken from the middle of an approved range.
  • This calculator does not recommend or discourage any particular toy. It only counts.

Sources

Every externally sourced value used by this calculator, with its full derivation and its limits.

about 57.7 g

Illustrative reference mass for one approved tennis ball, taken as the midpoint of the approved 56.0–59.4 g range.

(56.0 g + 59.4 g) / 2 = 57.7 g

Limits: An illustrative single reference value for a range. Dog toys are not tennis balls; this is only used as a familiar mass comparison.

Status: verified · next review 2027-08-17