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Countries · SGD

Electricity-cost calculators for Singapore

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.

Verified reference · Confidence A 99/100SGD 0.3478/kWh

Regulated tariff, Singapore. Effective 2026-07-01 to 2026-09-30. Your own marginal bill rate remains the better input when your plan differs.

Source: Energy Market Authority regulated tariff ↗

Singapore direct answer

What does electricity cost at the current rate?

At the Q3 2026 regulated tariff of S$0.3478/kWh including GST, every 10 kWh costs S$3.48 and every 100 kWh costs S$34.78. Retail-plan customers should replace this reference with the all-in rate on their own contract or bill.

Worked input30-day energy30-day cost
1.5 kW air conditioner · 8h/day · 55% active198.0 kWhS$68.86
300 W dehumidifier · 8h/day · 60% active43.2 kWhS$15.02
3 kW water heater · 30 min/day45.0 kWhS$15.65
100 W refrigerator · 24h/day · 35% active25.2 kWhS$8.76

Worked examples use transparent input assumptions, not household averages. Formula: input kW × hours × active-load share × 30 days × tariff. The editable calculator below uses 52 weeks ÷ 12 for its monthly estimate, so its result can differ slightly from this 30-day reference.

SGD calculator

Start with any appliance.

A current official reference is prefilled. Edit it when your utility, plan, usage tier, tax treatment, or bill differs.

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 costSGD 5.06

Likely planning range SGD 4.56–SGD 5.57

Per daySGD 0.17
Per active hourSGD 0.04
Per yearSGD 60.77
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.