Running Costs of Common Appliances in Singapore 2026

Most people have a vague sense that the air conditioner is expensive to run and the phone charger is not, but few can say by how much. Understanding what actually drives your electricity bill turns guesswork into decisions: which appliance to upgrade, what to switch off, and where the real savings are. This guide explains how appliance running costs work in Singapore and gives rough figures so you can size up your own home.

The one thing to understand: the kilowatt-hour

Your electricity bill is measured in kilowatt-hours (kWh). A kilowatt-hour is simply power multiplied by time: an appliance rated at 1 kilowatt running for one hour uses 1 kWh. That single idea explains almost everything about running costs.

It is why a 2 kilowatt kettle that runs for three minutes costs almost nothing, while a modest appliance left on around the clock quietly adds up. The label wattage tells you how thirsty an appliance is; the hours you run it decide the actual cost. When people are surprised by a high bill, the culprit is usually something with both meaningful power and long running hours.

The tariff: roughly 30 cents per kWh

To turn kWh into dollars you multiply by the tariff. In Singapore, SP Group’s regulated electricity tariff is roughly 30 cents per kWh as a rough 2026 guide, but this is reviewed periodically and moves with fuel prices, so treat that figure as approximate and check the current rate printed on your latest bill.

The simple formula is: kilowatts multiplied by hours multiplied by tariff. So an appliance drawing 1 kilowatt for two hours a day costs about 1 times 2 times 0.30, roughly 60 cents a day, or around 18 dollars a month at that rate. Once you internalise this, you can estimate any appliance yourself.

The appliance’s power rating is printed on a label on the unit or in its manual, usually in watts, so divide by 1,000 to get kilowatts. For anything that switches itself on and off, like a fridge or aircon compressor, the label figure is the peak draw rather than a constant one, so real usage is lower than a naive calculation suggests. That is why the tick label and manufacturer’s typical annual consumption figure are more reliable than doing the maths on the peak wattage alone.

Rough monthly costs of common appliances

The figures below are approximate and depend heavily on the specific model, its efficiency, and how you use it. Treat them as a way to compare appliances relative to each other, not exact bills.

Appliance	Why it costs what it does
Air conditioner	High power and long hours, usually the biggest single item, especially if run nightly
Clothes dryer	High power in long cycles, can rival aircon in homes that dry loads often
Refrigerator	Modest power but runs 24/7, so it adds up steadily over the month
Water heater	High power but only while showering, so cost tracks shower length and temperature
Electric kettle	High power but very short bursts, so overall cost is small
Washing machine	Moderate, driven mostly by heating water if used and number of loads

The pattern to notice: the biggest costs come from appliances that combine real power with either long hours (aircon, dryer) or constant operation (fridge). Short-burst appliances rarely move the needle no matter how high their wattage looks.

Air conditioning: the big one

For most Singapore homes, air conditioning is the single largest driver of the electricity bill. It draws significant power and often runs for hours every night. That makes it the appliance where efficiency and habits pay off most. Choosing an efficient unit, servicing it so it runs well, setting a sensible temperature rather than the coldest, and using a timer all add up. If you are shopping for a new unit, our guide on buying aircon for an HDB flat in Singapore covers sizing and efficiency.

Because aircon dominates, it is also worth asking whether you always need it. In milder conditions a fan, or managing humidity another way, can reduce reliance on it. Our comparison of a dehumidifier versus aircon for humidity in Singapore looks at when each makes sense.

The fridge and the always-on appliances

A refrigerator draws far less power than an aircon at any moment, but it never switches off, so over a month it quietly becomes one of your larger costs. This is why fridge efficiency genuinely matters, a difference in energy rating repeats every hour of every day for years. The same logic applies to anything left running continuously, including some devices on standby. Individually standby draw is tiny, but a houseful of always-on gadgets adds a little to every month’s bill.

An older fridge is a particularly worthwhile candidate for replacement. A unit from many years ago can use noticeably more electricity than a modern efficient one, and because it runs around the clock, the saving from upgrading accumulates faster than for almost any other appliance. If you are already replacing an ageing fridge, choosing a well-rated model pays you back over its whole life rather than just at purchase.

The dryer and other high-power surprises

A clothes dryer catches many households out. It combines high power with long cycles, so in a home that dries several loads a week it can rival the aircon as a top cost. In Singapore’s climate, air-drying laundry is often practical, and shifting even some loads off the dryer is one of the more effective savings available. Where a dryer is unavoidable, running full loads and choosing an efficient model both help.

Other quietly expensive habits include very long hot showers, which run the water heater at high power, and leaving the aircon on all day rather than for the hours you actually need it. None of these are dramatic on their own, but because they involve high-power appliances, small changes in how long you run them translate into real money over a month.

Reading the energy tick labels

You do not have to calculate everything yourself, because NEA’s Mandatory Energy Labelling Scheme puts a tick rating on regulated appliances such as fridges, aircon and dryers. More ticks means a more energy-efficient model, so for the same amount of use it costs less to run. When comparing two similar appliances, the one with more ticks will usually save money over its life even if it costs a bit more up front, and for high-use items like aircon and fridges that difference is worth paying for. For a broader look at choosing appliances well, browse our appliances guides.

Simple ways to cut the cost

Once you know where the money goes, the savings are common sense. Focus effort on the big users: run the aircon efficiently and at a sensible temperature, air-dry laundry when you can instead of using the dryer, and keep the fridge in good order with a full but not overpacked interior. Switch off at the wall the things you rarely use, and choose efficient models for anything that runs long hours. None of these require sacrifice, just attention to the handful of appliances that actually matter. For a full playbook, see our guide on how to cut your electricity bill in Singapore.

The bottom line

Appliance running costs come down to one formula: power multiplied by time multiplied by tariff, with the tariff roughly 30 cents per kWh as a rough guide to verify on your bill. The biggest costs come from appliances that combine real power with long or constant use, chiefly the air conditioner, sometimes the dryer, and steadily the fridge. Learn to spot those, lean on NEA’s energy tick labels when buying, and put your effort into the few high-use appliances rather than fretting over the kettle. That is where a lower bill actually comes from.

Related guides: Extended Warranty on Appliances