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Singapore electricity cost calculator

Use Singapore dollars, your own tariff, and device-specific operating models—without pretending one national average fits every household.

Billing context

Use the rate that changes with consumption.

The regulated tariff is revised quarterly, while retail plans may be fixed-price, discounted from the regulated tariff, or time-of-use.

How to enter your rate

Enter your current all-in electricity rate in S$/kWh from SP Group or your retailer. Check whether the displayed figure includes GST.

Check Energy Market Authority regulated tariff ↗

Estimate a Singapore electricity bill from kWh

Electricity usage charge = billed kWh × S$/kWh

For example, 400 kWh at an illustrative S$0.30/kWh costs S$120. This is a worked example, not a quoted current tariff. Use the rate and consumption from the same billing period.

Check the scope of your rate

Convert cents to dollars before entering the rate: 30 cents is S$0.30. Check whether GST is already included so you do not add it twice. Account for any fixed fees, rebates and non-electricity items separately when reconciling the total bill.

For an individual appliance, use its watts and runtime below. For the whole household, billed or metered kWh is a better starting point than adding nameplate wattages.

Household energy charge

Calculate the cost of your kWh in Singapore

Enter the electricity units from your bill and your plan's rate in Singapore dollars per kWh. The result updates as you type.

Estimated energy chargeEnter valid kWh and rateBoth values must be zero or higher.

No rate is prefilled; use the rate on your bill. This calculates the usage charge. Fixed fees, rebates, taxes not included in your rate, and other bill items need separate treatment.

SGD calculator

Start with any appliance.

The energy calculation works without a tariff. Enter your bill's per-kWh rate to convert energy into local cost.

01

Your scenario

Change any value. Results update instantly.

Active runtime accounts for cycling. Use 100% for devices that draw the rated power continuously.

02

Your reading

Planning estimate · based on your inputs
Estimated monthly costEnter your rate

Use the per-kWh energy charge from your latest electricity bill.

Per day—
Per active hour—
Per year—
Energy / month14.6 kWh

FormulakW × runtime × tariff

Month52 weeks ÷ 12

Data qualitySelf-entered estimate

Local high-intent tools

Built for Singapore

These pages combine the device model with local billing structure, a current source, and market-specific checks.

Local calculator

Air conditioner

Year-round heat and humidity make compressor runtime, set point, room leakage, and the current quarterly electricity tariff central to cooling cost.

Calculate local cost ↗Local calculator

Dehumidifier

Persistent humidity can keep a dehumidifier cycling for many hours, with extraction target, room leakage, and laundry drying driving consumption.

Calculate local cost ↗Local calculator

Water heater

Instant and storage water heaters have different power profiles, while shower duration and household frequency often matter more than the nameplate alone.

Calculate local cost ↗

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Calculation standards

Visible inputs. Reproducible results.

WhoPowerCost Lab's research desk maintains the formulas, market notes, and worked examples.

HowEnergy, tariff, and behavioural assumptions stay separate so readers can replace one input without hiding the others.

WhyThe page exists to answer an operating-cost decision. Advertising never changes a formula, default, or recommendation.