Laser distance meters

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A laser distance meter measures a distance by aiming at a point: it sends a pulse of light and times the return. One person is enough where a tape needs two, and the measurement can be taken across a cluttered room.

The usual models add area and volume calculation, indirect measurement by Pythagoras, a memory for readings and sometimes a link to a phone. Each product page gives the range, the accuracy in millimetres and the functions actually present.

Laser distance meter 120 m with angle measurement and Pythagoras — front view on a white background
Range (m)
up to 120
Accuracy (mm)
±2
Laser class
2
£104.00 inc. VAT
4 to 9 d.

How to choose

Range and accuracy are the two figures that count; the rest is convenience.

  • Range depends on the surface aimed at and on the ambient light. In bright sun on a light wall the real range drops well below the stated figure; a target plate restores it.
  • Accuracy is quoted in millimetres, independent of distance, for building work.
  • The functions: area and volume save time on a quote, indirect measurement earns its place when the point aimed at cannot be reached.
Read the guide

Frequent questions

Does a laser distance meter replace the tape measure?

For straight, clear runs yes, and one person can work it alone. The tape stays essential for following a curve, measuring a diagonal against an obstruction, or taking a dimension inside a box where the beam finds nothing to hit.

Where exactly does it measure from: the front or the back?

From either, as you choose. The measuring reference is adjustable: the back edge to measure from a wall with the instrument against it, the front edge to measure out of a corner. A reference set wrongly shifts every measurement by the full length of the housing.

Does the stated accuracy hold at every distance?

It is given under normal conditions, on a reasonably reflective target. On a dark, transparent or steeply angled surface the error grows and the instrument may refuse to measure. Then it helps to move closer, or to put a target plate on the point you are aiming at.

Can it be used outdoors?

Yes, but the range drops in bright sun because the ambient light drowns the red dot. A reflective target plate on the point you are aiming at makes the measurement possible again over longer distances. A green beam also stands out better than a red one in those conditions.