Check a billEnergy bill calculators and fast checks
Use these tools to estimate usage cost, sense-check a monthly payment and move quickly from raw numbers to the right troubleshooting guide.
kWh to cost calculator
Estimate the usage part of a bill from kWh and p/kWh, then add standing charge separately.
Is my direct debit correct?
Model a reasonable monthly payment using forecast annual cost, credit, debt and target buffer.
How to calculate a bill from a meter reading
Use a manual step-by-step method when you need to challenge a supplier calculation.
Unit rate vs standing charge
Understand the two charges before you argue with the numbers.
Electricity price per kWh
See which price to compare and why regional cap tables matter.
Current energy price cap
Use the current cap page when you need context for rates and standing charges.
How to use calculators properly
A calculator only helps when you separate usage cost from fixed daily charges and from account balancing. People often mix these together and then think the whole bill is wrong.
- Use the kWh calculator for the variable element.
- Add standing charge × billed days separately.
- Treat direct debit as a payment plan, not as proof that the bill itself is correct or incorrect.
- If the meter history looks odd, switch to the reading guides before doing more maths.