Set up for New Zealand homes
The paint calculator here begins with Wash&Wear Low Sheen, whose New Zealand data sheet gives 16 m² per litre, and it buys paint in the pack sizes dulux.co.nz lists, from 1 to 15 litres. The bedroom already entered comes to about 6 litres for two coats of walls and ceiling: one pack each of 4, 2 and 1 litre.
The menu also holds Wash&Wear Matt, Ceiling White, two Weathershield exterior finishes and Timbacryl. Choosing one changes the coverage figure and the packs together.
Pack sizes differ from Australia
Dulux sells the same product names on both sides of the Tasman, but not always in the same sizes. In New Zealand, Ceiling White and Weathershield Matt come only in 4 and 10 litres, so a small ceiling can end up with more paint left over than the litres suggest. The “least left over” line shows exactly what you will have spare.
Weatherboards and bare timber
For a weatherboard house pick House exterior and then Timbacryl. The calculator subtracts doors and windows and adds the gable triangles under the roof. Timbacryl’s data sheet asks for 2 or 3 coats depending on the condition of the timber, and 3 on bare wood, so new boards need the Coats setting raised before you order.
Dulux paints in the calculator: the range sold in New Zealand
| Paint | For | Coverage, as stated | Tins |
|---|---|---|---|
| Wash&Wear Low Sheen | Walls | 16 m² per litre (theoretical spread rate) | 15 L, 10 L, 4 L, 2 L, 1 L |
| Wash&Wear Matt | Walls | 16 m² per litre (theoretical spread rate) | 15 L, 10 L, 4 L, 2 L, 1 L |
| Ceiling White | Ceilings | 16 m² per litre (theoretical spread rate) | 10 L, 4 L |
| Weathershield Low Sheen | Outside walls | up to 16 m² per litre | 15 L, 10 L, 4 L, 2 L, 1 L |
| Weathershield Matt | Outside walls | up to 16 m² per litre | 10 L, 4 L |
| Timbacryl | Outside walls | 16 m² per litre (theoretical spread rate) | 10 L, 4 L, 1 L |
What one room takes in each
Two coats. Rooms: 4 × 3.5 m room with 2.5 m walls, one door, one window, walls and ceiling (ceiling only for a ceiling paint). Outside: 8 × 10 m house with 5.2 m walls and two gables.
| Paint | Area | Paint, 2 coats | Buy |
|---|---|---|---|
| Wash&Wear Low Sheen (room, 16 m²/L) | 48.6 m² | 6.1 L | 1 × 4 L + 1 × 2 L + 1 × 1 L |
| Wash&Wear Matt (room, 16 m²/L) | 48.6 m² | 6.1 L | 1 × 4 L + 1 × 2 L + 1 × 1 L |
| Ceiling White (ceiling, 16 m²/L) | 14 m² | 1.8 L | 1 × 4 L |
| Weathershield Low Sheen (house, 16 m²/L) | 189.8 m² | 24 L | 2 × 10 L + 1 × 4 L (fewer cans: 1 × 15 L + 1 × 10 L) |
| Weathershield Matt (house, 16 m²/L) | 189.8 m² | 24 L | 2 × 10 L + 1 × 4 L |
| Timbacryl (house, 16 m²/L) | 189.8 m² | 24 L | 2 × 10 L + 1 × 4 L |
Coverage per coat for the Dulux range sold in New Zealand, from the maker's pages linked above, checked September 2026. Dulux and its product names are its owner's trademarks, used only to describe the products; Meadow Tools is not affiliated with or endorsed by Dulux.