When should I top up?

Enter your tank reading to see roughly how long your oil will last and when to order.

County

For local weather and prices.

Tank capacity

Litres · check the tank label.

Tank level today

About 500 L left in a 1,000 L tank.

Use today’s reading. Oil depth is not always the same as percentage full.

Usual heating pattern

Short periodsMorning & eveningMost of the day

Includes the time of year and available local weather. A planning estimate, not an exact run-out date.

Reading & delivery settingsRough reading · 7-day delivery allowance

How did you check the level?

A calibrated volume reading can narrow the estimate.

Time to allow for a delivery

A planning buffer, not a supplier’s delivery promise.

Refine with your home details · optional

Only fill in what you know. A full year’s oil use is the most useful detail.

Oil actually used in a full year (litres)

A delivery is not the same as consumption. Use a year that began and ended at roughly the same tank level; leave blank after major heating changes.

Heated floor area (m²)

Only the area heated by oil. Leave blank if unsure; the starting estimate uses 120 m².

Building energy rating (BER)

A starting point, not measured oil use.

Usual room temperature (°C)

Leave blank if unsure; the starting estimate uses 20°C.

Does oil heat your hot water?

People using hot water

Leave blank if unsure; the starting estimate uses 2 people.

Boiler efficiency

Broad estimates, not a measurement of your boiler.

Saved only in this browser. Today’s tank reading is never saved.

No account needed. Check the tank regularly and confirm delivery with your oil supplier.