watt&home
US · UK · Europe
Market & tariff

Choose your label market and enter the electricity price from your bill.

For example, 20 cents/kWh is 0.20 USD/kWh. Use your own bill rate.

Read United States guidance

Changing market selects a currency and clears the draft price for you to enter. Currency changes do not convert prices. Your remembered market sets the label reader's starting market; shared examples keep their own inputs. Separate scenario rates stay as entered.

Clearing removes saved market, tariff, scenarios and measurement observations. Export journal records you want to keep first. Analytics choices are managed separately in the footer.

How device storage works

YOUR APPLIANCE. YOUR TARIFF.

Guided appliance energy-label reader

Choose your appliance and label market, identify the energy figure and its units, and carry your manually entered values into a running-cost calculator.

READ. CHECK. CALCULATE.

Find the energy number that matters.

Use the annual kWh figure when your EnergyGuide label states one. Its printed dollar cost uses its own price and test assumptions.

Find annual kWh for the exact model and usable capacity. The figure is used directly, without multiplying by hours.

Type values from your label or product sheet. Changing market or appliance loads new illustrative starting values. Replace them with the figures from your own source.

Illustrative label example · not an official label
Fridge / freezer
1365kWh

2per stated year

3Check the programme, capacity, mode and source scope before comparing.

Electricity cost on the stated annual basis

$73.00

365 kWh × your price per kWh.

Use these inputs in the calculatorRead the market and label guide
Use the correct basis

Annual kWh is priced directly. Per-100-cycle kWh is divided by 100 before multiplying by your cycle count and 52 weeks. A per-cycle figure already describes one task. An hourly AC figure can be extended only if you assume that stated consumption remains representative over your entered hours and use days.

An efficiency letter or seasonal-efficiency ratio alone does not establish household kWh. Keep heating and cooling separate. For washer-dryers, use non-overlapping washing-only and complete-cycle groups in the household planner.