How to Calculate Correct Distance ? (With Formula) | Surveying

The correct distance can be calculated from the following formula:

or Correct distance × Correct length of chain or tape =Incorrect distance × Incorrect length of chain or tape

Aid to memory:

Product of correct things = Product of incorrect things.

“Birds of a feather flock together”

Remember:

True distance will be longer than the measured distance if the chain used is too long and shorter than the measured distance if the chain used is too short.