Decision tool

Coalition builder

Seats below come from the average of the three most recent polls on file, allocated the way New Zealand actually does it (Sainte-Laguë, 5% threshold, electorate waiver). Tick parties to build a government and see whether it reaches a majority. 61 seats is a majority in a 120-seat Parliament. Overhang seats can push the House above 120, which lifts the number needed.

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Seats on today's polling

  • 39
  • 36
  • 13
  • 12
  • 10
  • 8
  • 3

Electorate counts start from the seats each party holds now, capped at what current polling entitles it to. Change them to test a different local result — winning an electorate lets a party under 5% into Parliament.

This is arithmetic, not a prediction. Parties decide for themselves who they will work with, and several have ruled combinations in or out — check their own statements on the party profiles page. Parties covered: 7.