The complete collection

Free tools for everyday decisions.

Check the numbers behind household bills, savings goals and common expenses. You provide the figures, we show the maths.

Find out how much a kettle, heater, television or other appliance could cost to run using your own tariff.

Estimate the cost of leaving multiple devices plugged in around the clock.

Turn the kWh/year on an appliance's energy label into an estimated annual running cost.

Estimate how much water showers use over a year, with optional metered water and wastewater costs.

Work out the approximate fuel cost of your weekly commute using UK miles per gallon.

List the recurring payments you make and see their yearly total in seconds.

See how many months it could take to reach a chosen target.

Pick an amount of essential monthly outgoings and calculate your own savings target.

Compare the headline cost of staying with your broadband contract against an alternative.

Find out how much throwing away a little food each week could cost over a year.

Compare a 50/50 split with an income-proportional split for two people.

Check how much income might remain after ordinary household costs.

Create a growing weekly savings plan and see its year-end total.