ExactUnits
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Everyday pack · Power, consumption, heating, and household cost

Energy & bills

Connect appliance ratings and energy units to the quantities that appear on utility bills and household cost estimates.

Open workspace Measurement log

Quick conversions

Useful calculators

Before you use the numbers

  • Power is the instantaneous rate; energy is power accumulated over time.
  • Use a recent bill to enter the complete per-kWh price, including variable charges.

Conversion factors come from the same exact-rational registry as the rest of the site. Calculators show their formula and editable assumptions on the result page.

Settings

Theme

System follows your operating system and changes with it.

Text size
High contrast

Maximises text and border contrast and removes the grid background.

Graph-paper background
Round to
Notation
Thousands separators
Decimal mark
Nearest fraction

Shows the result as the nearest tape-measure fraction, with the error it costs.

Accessibility & interaction
Reduce motion Stops interface animations even when the operating system does not.
Underline links Keeps links visually distinct without relying on colour.
Larger touch targets Makes buttons and form controls easier to tap.
Shorter reading lines Limits article width for easier scanning.
Monochrome display Removes colour as an information cue.
Always-visible focus Makes the keyboard focus ring persistent and stronger.
Verbose screen-reader results Announces the complete conversion equation.
Sticky action bars Keeps converter and calculator actions within reach.
Select values on focus Replaces a value immediately when you start typing.
Left-handed mobile layout Moves key mobile actions toward the left thumb.
Your data

Settings, recent conversions and favourites live in this browser only. Nothing is sent anywhere.

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