Why is my appliance's cost higher than just multiplying watts by hours by the rate?
Because the Saudi tariff is progressively tiered, not a flat rate. If your current usage is close to the 6,000 kWh limit, adding a new appliance may push part (or all) of its usage into the higher second tier (30 halalas instead of 18), raising the appliance's actual cost above a simple calculation.
How do I find my appliance's wattage?
Usually printed on a metal or plastic label on the back or bottom of the appliance (Rated Power or Watts), in the user manual, or on the product page where you bought it. If only amps and volts are shown, multiply amps × 220 (Saudi Arabia's standard voltage) to get an estimated wattage.
Does the calculator include the fixed monthly meter reading fee?
No, intentionally. The meter reading/maintenance fee is a fixed monthly amount that doesn't change based on any specific appliance (it only depends on your breaker capacity), so it doesn't make sense to attribute it to one appliance's cost. This calculator focuses purely on the real cost tied to the appliance's own usage.
Is this number 100% accurate?
It's a very good estimate based on the entered power rating and actual usage hours, but real consumption may vary slightly depending on the appliance's condition, actual grid voltage, and ambient temperature (especially for ACs and refrigerators, whose real consumption changes with cooling load). Use it as a reliable planning estimate, not a final bill figure.
