Calculators

Estimate indoor dew point from room temperature and relative humidity.

Estimate dew point from room temperature and humidity, compare it with a measured window or wall temperature, and get a practical next-step interpretation.

Compare laundry drying cost per load from measured kWh or watts and hours, with weekly and annual estimates for five drying methods.

Compare editable electricity-cost estimates for a dehumidifier, heated airer and tumble dryer.

Calculate how much a heated clothes airer costs to run in the UK from wattage, drying time and the current default electricity rate, with your own tariff editable.

Calculate UK dehumidifier costs from watts and hours or measured kWh per session. Compare weekly and annual costs using your own electricity tariff.

Estimate the cost of running a portable electric heater by wattage and time.

Calculate tumble-dryer cost per cycle from measured or energy-label kWh, or estimate from watts and cycle duration using your own tariff.

Calculate electricity cost for almost any household appliance from watts, hours and your tariff.

Calculate heat-pump dryer electricity cost from energy-label kWh per cycle or a watts-and-hours estimate, with your own tariff.

Calculate electricity cost for almost any household appliance from watts, hours and your tariff.

Calculate UK dehumidifier costs from watts and hours or measured kWh per session. Compare weekly and annual costs using your own electricity tariff.

Calculate tumble-dryer cost per cycle from measured or energy-label kWh, or estimate from watts and cycle duration using your own tariff.

Calculate heat-pump dryer electricity cost from energy-label kWh per cycle or a watts-and-hours estimate, with your own tariff.

Estimate the cost of running a portable electric heater by wattage and time.