Terms of use

Using WattMaths

WattMaths is run by Sithum Imarsha. In these terms, "I" and "me" mean Sithum.

WattMaths is free to use. You don't need an account, and there is nothing to sign up for. By using the site, you agree to these terms. If you don't agree, please don't use it.

Results are estimates

The calculators give you an estimate to help you decide. A result is not financial, tax or legal advice, and it is not a quote.

Your own bill and real quotes come first. If they differ from a WattMaths result, go with them. A result is only as good as the inputs you enter and the figures it uses.

Each calculator shows how it works out its result. See how we calculate

Rates and rules change

Rates, rebates and rules change often. I review every data file at least every 90 days, and each calculator shows when its figures were last reviewed.

A figure can still go out of date between reviews. Before you make a decision, check the official source.

See every source and where we use it

No warranty

I provide WattMaths as is. To the extent the law allows, I don't promise that:

• the site will always be available, free of errors or up to date
• a result will match what you actually pay or save

Nothing in these terms excludes, restricts or changes any right you have under the Australian Consumer Law, or under other consumer laws, that can't be excluded.

Limit of liability

To the extent the law allows, I'm not responsible for any loss that comes from relying on a WattMaths result. That includes money you spend and savings you don't get. Base your decision on your own bill, real quotes and the official sources.

Nothing in these terms excludes, restricts or changes any right you have under the Australian Consumer Law, or under other consumer laws, that can't be excluded.

Links to other sites

WattMaths links to official sources and other websites. I don't control those sites, and I'm not responsible for what they say or do. Their own terms and privacy policies apply.

Ads

WattMaths shows ads from Google. Google picks the ads, not me. An ad is not a recommendation or an endorsement. No retailer or installer pays to appear in a result.

How ads use cookies

Copying and sharing

• You are welcome to share links to any page or result.
• You can quote a short part of a page if you link back to it.
• Please don't copy whole pages or calculators, or put them on another site.

Changes to these terms

I may update these terms. When I do, I'll change the "Last updated" date at the top. If you keep using the site after a change, the new terms apply.