How do I read my gas meter?

A gas meter allows you to manage and understand your gas consumption. Most energy suppliers will charge you for an estimate of your energy use, so you can often end up paying for more or less energy than you use.

If you know how to take an accurate gas meter reading, you will ensure that you are paying for the energy you actually used.

Read below to learn how to read your meter, and what to look out for.

Why do I need to read my gas meter?

Knowing what your actual gas use is rather than an estimate will help you decide whether you can get a better rate by switching suppliers.

Supplier estimates

Unless you have a prepayment meter, your supplier will estimate how much gas you are using to calculate your bill.

Often these estimates are not an accurate reflection of what gas you have actually used. Sometimes you can end up paying too much for your bill and be refunded at a later date, or you can end up paying too little and have to pay a larger bill later on in the year.

Types of gas meters

There are four main types of meters: standard meters, digital meters, dial meters and prepayment meters.

Standard meters


To read this meter, you will need to take a note of the five black numbers from left to right - ignoring any red numbers (if present). This is the most common type of gas meter in Ireland.

Digital meter


Press the indicated button to get your digital meter reading to display. Write down the first five figures on the digital display, and ignore any last figure that begins with 0.1.

Prepayment meters

There are a range of prepayment meters available in Ireland. Generally, to take a meter reading you have to press a blue button. Normally the display shows your remaining credit on the meter, but pressing this blue button will bring up your actual meter reading. Once you have this number displayed, make a note of the numbers, ignoring those appearing in red.

Dial meter

Dial meters look like small clocks, but the dials go around the clock in opposite directions.

To read this type of meter, you will need to read the numbers on the dials from left to right, ignoring the last red dial or any dials without figures or hands. If the needle is between two figures, take a note of the number the dial has just passed.

You will need to adjust this reading to allow for any small variations in the pointer positions.

If the figure is directly over the figure, say 5, write down that figure and underline it. Look at the figure underlined. If one of those numbers in the sequence is followed by a 9, reduce the underlined figure by 1 (so the underlined 5 becomes 4).

I’ve taken my meter reading, what do I do now?

Now that you have an accurate meter reading, compare it against your last estimated bill. If you have been overpaying your bill, then you are entitled to a refund from your gas supplier. You can contact your provider to settle this.

If you have been underpaying your bill, contact your supplier to discuss your options.

What should I do if I think my meter reading is wrong?

If your gas meter reading seems incorrect, contact your supplier to let them know there could be something wrong with your meter.

Start switching

Start switching your gas supplier now to find out how much you could save. The process takes just a few minutes.

To learn more about switching gas, review our energy switching FAQ guide.