Bills & Utilities
Bills & Utilities calculators
Estimate energy and water bills from the rates on your statement. These calculators are built for UK household planning and bill checking, not regulated switching advice.
UK Energy Bill Calculator
Estimate a UK electricity or dual-fuel bill from kWh usage, unit rates, standing charges, and billing days.
UK Gas Meter Reading Calculator
Convert UK gas meter readings from metric or imperial units into kWh and estimate the gas bill cost.
UK Energy Tariff Comparison Calculator
Compare two UK energy tariffs using usage, unit rates, standing charges, and one-off fees or credits.
Economy 7 Break-even Calculator
Compare a single-rate electricity tariff with Economy 7 and find the off-peak usage needed to break even.
Appliance Running Cost Calculator
Calculate how much an appliance costs to run from watts, runtime, usage frequency, and p/kWh electricity rate.
UK Water Bill Calculator
Estimate a UK water bill for metered, unmetered rateable-value, or assessed-charge billing.