Australia Travel Budget Calculator

Total = accommodation × nights + (food + transport) × nights × travellers + activities + flights Accommodation is usually priced per room rather than per person, so it scales with nights only, while food and local transport scale with both nights and travellers. Separating flights out shows the on-the-ground cost, which is the part you can still influence.

Trips overrun because per-day costs are multiplied by the wrong headcount; splitting the fixed and per-person components is what makes the total hold up.

This calculator takes 7 inputs: Nights staying, Travellers, Accommodation per night, Food per person per day, Local transport per person per day, Activities and extras, whole trip, Flights or long-distance travel, whole trip. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.