Never caught out
Tools
Three simple tools. They run entirely in your browser: nothing you type is sent to us or anyone else.
- 01Household emergency planContacts, meeting points, medicines and where things are, in one printable page. Saved only on this device.
- 02Drinking water calculatorHow much bottled water your household needs, at 3 litres per person per day.
- 03Power bank calculatorRoughly how long a power bank could run a phone, router or light.
- 04Power cut compensation calculatorOfgem’s 2026/27 guaranteed payments for a long cut.
These tools give rough guides, not guarantees. For anything about health, medicines or medical equipment, ask your pharmacist, GP or the NHS.