How much electricity does your household really use?
Estimate annual electricity usage and monthly cost by household size, home type, AC usage, and appliances. Singapore rates and billing structure built in. No sign-up required.
FreeNo sign-upSingapore defaults built in
Electricity Cost Calculator
Get to a practical electricity bill estimate in under a minute. Start with a household template, then only adjust the parts that are actually different for you.
Free, no sign-up
Ready in about 30 seconds
1. Pick the closest householdStart with single, couple, or family.
2. Only change what is differentRate, AC usage, and water heater matter most.
1. Choose a household type
Tap the closest starting point.
2. Adjust usage level
Optional, only if your home is clearly below or above typical usage.
1 = very efficient, 5 = typical Singapore household, 10 = well above average. Good for matching the model to your actual bill.
3. Check the basics
4. Air conditioning
AC is typically 40-60% of your electricity bill in Singapore. Getting this right matters most.
Tip: setting your AC to 25°C instead of 22°C can reduce AC electricity use by 15-20%.
5. Check your electricity rate
Singapore uses pure consumption billing — no standing charge or service fee. If you do not know your exact rate, start with the SP Group default.
Singapore has no monthly standing charge. Your bill is purely based on kWh consumed.
Additional settings, only if the estimate still looks off
Cooling & Fans
Work & Office
Specify work-from-home days and how many devices are running during the day.
Kitchen & Laundry
Entertainment
What to do with this estimate
If your result is higher than expected, check the AC settings first — they are the biggest lever in Singapore. Also consider switching to an Open Electricity Market retailer for a lower rate. If you want updates when we add new calculators:
Double opt-in via Beehiiv. No sales funnel.
How the estimate works
Base usage: Depends on household size and home type (lighting, standby, basic devices)
AC adjustment: Number of units and usage pattern — this is the biggest factor in Singapore
Appliance add-ons: Additive values for water heater, washer, dryer, home office, etc.
Range: Low and high estimates (plus/minus ~18%) account for habits, insulation, and appliance efficiency
Cost: Estimated usage times your per-kWh rate. No standing charge in Singapore.
Reference values for Singapore household electricity
1-3 room HDB: typically 300-450 kWh per month
4-5 room HDB: typically 400-600 kWh per month
Private condo: typically 500-800 kWh per month
Landed property: typically 700-1,200 kWh per month
Air conditioning dominates Singapore electricity bills due to the tropical climate. A single AC unit running 10 hours a day can use 150-200 kWh per month.
Based on EMA (Energy Market Authority) household consumption data.
Frequently asked questions
How much electricity does a Singapore household use?It depends on home type, household size, and AC habits. An average HDB flat uses about 400-500 kWh per month. Air conditioning typically accounts for 40-60% of the total electricity bill in Singapore's tropical climate.
What is the SP Group electricity tariff?SP Group sets a regulated quarterly tariff for households that have not switched to a retailer under the Open Electricity Market. The tariff is currently around 33 S¢/kWh and is reviewed every quarter based on energy costs.
How can I reduce my electricity bill in Singapore?The biggest lever is air conditioning — set it to 25°C, use a timer, and supplement with ceiling fans. Choose appliances with higher NEA energy label ratings (more ticks). Switch to LED lighting and turn off devices on standby.
Should I switch to the Open Electricity Market?The Open Electricity Market (OEM) lets you choose a retailer offering fixed or discount-off-tariff plans. Many retailers offer rates below the SP Group regulated tariff. Switching is free and your power supply remains uninterrupted — only the billing entity changes. Compare plans on the EMA website.
Usage notes
This calculator provides a quick orientation for usage and variable electricity cost.
Your actual cost depends on your specific rate, contract terms, and consumption habits.
For binding figures, refer to your SP Group or retailer bill and official EMA information.
Email sign-ups run through Beehiiv with double opt-in. There is no tariff brokering.