Business Energy Bill Calculator -
Know Before You Owe
Don’t be stung by a surprise energy bill. Enter your meter reads and rates to see a clear, bill-style breakdown—before your invoice lands.
100% 5 Star Reviews on TrustPilot
Don't Let Estimates Bite.
Energy suppliers may estimate your usage between meter reads. That can mean a nasty catch-up bill when you submit an up-to-date reading—or months of overpaying that props up the supplier’s cash flow.
Our calculator lets you enter your reads and instantly see what your next bill should be—before you hand the numbers over.
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Transparent by design
Shows consumption, standing charge, CCL and VAT separately.
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Zero faff
We don't store your inputs unless you submit them.
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Real-world accurate
Metric/Imperial gas conversion & Economy 7 day/night
Your bill, before the bill
Add your reads and rates; we’ll calculate kWh, apply VAT/CCL, and show a line-by-line total exactly how a bill presents it.
What Our Clients Say
“Sorted out a complicated overcharge with EDF — turned a huge debt into a credit of thousands.”
“Regular price updates and comparisons have saved us money for years. Highly recommend Smart Energy”
“Weekly pricing and sector insights for months before we signed. Best rates we found.”
“Competitive rates and quick responses — sorted our best deal within hours”
“Tom was incredibly helpful — easier and more streamlined than any comparison site..”
“Great service over 5 years across 2 companies. Excellent at resolving billing issues too.”
Free check before you submit your reads
Not sure your rates or reads look right? Upload your latest bill and we’ll sanity-check it for free—no obligation.
Your Questions, Answered
We understand energy contracts can be confusing.
Here are answers to the questions businesses like yours ask most often
Why might my estimate differ from my supplier’s bill?
Suppliers may include prior balances or admin fees; we show the core fixed charges.
Do you support Economy 7
Yes—day/night reads and rates are shown separately.
Metric vs imperial gas?
We detect your units and convert to kWh automatically.
When do I use 5% VAT?
If your consumption is low, or you are a Charity.
