Whole-home bill audit + savings planner

Enter your bill and tick the fixes you can do. The tool ranks them by payback — shortest first — and prints a plan. This is the tool KiloWise is built around: a planner, not another single-appliance calculator. The appliance breakdown is a feature inside this audit.

Estimate — verify on your bill. Savings below are planning estimates with the assumptions shown under each fix. They are not guaranteed.

Country — choose first. Rates differ by country; a US rate on a UK bill is a wrong number.

Monthly electricity/gas use (kWh) — from your bill

Your unit rate — from your bill, in $ per kWhUS average stored: 18.19 cents/kWh, Jan–Jul 2026 (US EIA). UK, Canada and Australia: no verified average stored — enter your own rate.

Standing / fixed charge per month (in $) — 0 if none

Fixes — tick what you can do Lower the thermostat by 1°C when out or asleep (free)
Draught-proof doors and windows Cost of draught-proofing (your quote; planning figure only if blank)
LED bulbs to swap (most-used first) Cost per LED bulb
Total watts left on standby (add up the labels)
Lower the water heater to 120°F / 49°C (if set higher)

Appliance breakdown (optional — inside this audit)

Enter watts from the label, not a guess. Hours per day is how long the appliance is on.

Appliance	Watts	Hours/day

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Read the audit guide · How to read your bill