Electricity Cost Calculator Widget
A free, embeddable mini calculator that estimates daily, monthly and annual electricity costs from a reader's kWh usage, with a link to our full energy bill calculator.
Electricity Cost Calculator
Daily
£2.00
Monthly
£60.75
Annual
£729.00
Live preview
What it shows
- Daily electricity cost
- Monthly electricity cost
- Annual electricity cost
- Link to the full calculator
Embed this widget
Copy the snippet and paste it into your page's HTML or a custom-embed block. It works in WordPress, Squarespace, Wix, Ghost and any CMS that allows HTML. The widget updates automatically — you never need to change this code.
<iframe src="https://powerguardian.co.uk/embed/electricity-cost" width="360" height="300" loading="lazy" frameborder="0" scrolling="no" style="border:0;max-width:100%;" title="Electricity Cost Calculator by PowerGuardian"></iframe>Related tools & guides
Frequently asked questions
What unit rate does the calculator use?
It uses PowerGuardian's typical electricity unit rate, which we review monthly. Readers enter their kWh usage and the widget estimates the daily, monthly and annual cost.
Can visitors calculate their own usage?
Yes — the widget is interactive. Visitors enter their own kWh figure and see the cost update instantly, then can follow the link to our full bill calculator for a more detailed breakdown.
Is this widget free to use?
Yes. It's free for non-commercial and editorial use on UK consumer websites, blogs, local authority pages, housing association sites and charities. The only requirement is that the 'Powered by PowerGuardian' attribution link stays visible and clickable.
How do I add it to my website?
Copy the iframe snippet on this page and paste it into your page's HTML where you want the widget to appear. It works in any CMS that allows custom HTML or embed blocks — WordPress, Squarespace, Wix, Ghost and more.
Does it work on mobile and in dark mode?
Yes. The widget is fully responsive, mobile-optimised and lazy-loaded, and it adapts to light and dark backgrounds so it blends with your site's theme.