Water bill calculator

Usage-based water charges.

Built and reviewed by Dovanic, Founder and editor, FreeByteLast reviewed: 2026-08-18

Cubic metres per year

Cost per cubic metre

Yearly standing charge

Yearly bill

$334

Monthly

$27.83

With these inputs, yearly bill comes to $334. Monthly works out to $27.83. The result assumes cost per cubic metre stays at 2.4%.

What moves the number · Yearly bill

Input	−10%	Now	+10%
Cubic metres per year	$307.6	$334	$360.4
Cost per cubic metre	$307.6	$334	$360.4
Yearly standing charge	$327	$334	$341

Whatmakesequal

Save this set of inputs, change something, then save again to compare the outcomes side by side.

Usage-based water charges.

With the defaults above, yearly bill works out at $334.