Home and energy
Explain a bill, find expensive appliances and reveal hidden standby use.
WattWorth · Free · no sign-up · editable assumptions
Everyday life, in numbers that make sense.
Choose a question, adjust the ready-made example and get an instant result. Your inputs stay in the browser and no account is needed.
Water
From drinking and showers to laundry, gardens and quiet leaks.
Body and nature
Curious estimates for things happening every day.
Your whole life in numbers
One profile turns habits, spending and utilities into a yearly picture.
Cars and transport
See the full cost of ownership, not fuel alone.
Appliance library
48 ready-made wattage examples
Choose an appliance, replace the sample wattage with its label value and add your tariff for a better estimate.