Trip Budget Calculator

Add up what a trip will cost before you book anything. Enter the one-off items, the daily spending per person and a safety margin, and the page returns a full breakdown with the total, the cost per traveller and the average cost per day.

Turning a List of Costs Into One Number

The calculator groups spending into three blocks and then combines them. One-off costs are paid once for the party, daily costs are paid per person for each day, and a shopping figure is added as a single lump. A buffer percentage is then applied to the combined subtotal.

• One-off costs are flights plus insurance. They are entered as a total for the whole party, not per person.
• Lodging is charged by the night and the page assumes the number of nights is one fewer than the number of days, which is the usual rule for a trip that starts and ends with a travel day.
• Daily per-person costs are food, activities and local transport added together into a single daily figure.
• The daily block is then multiplied by the number of travellers and by the number of days, so it scales with both the party size and the length of the stay.
• Shopping or souvenirs is treated as one lump sum for the trip and is not multiplied by days or travellers.
• The subtotal adds the one-off block, the lodging block, the daily block and the shopping figure.
• A buffer percentage is applied to that subtotal and added back on to produce the total, and the result is also divided by the party size for a per-person figure and by the total person-days for an average daily cost.

Filling In a Trip Estimate

1. Name the destination. The field is for your own reference and labels the result; it does not change any of the arithmetic.
2. Set the number of days and the number of travellers. These two values drive the daily block and both per-person calculations.
3. Enter the one-off costs: the total airfare for everyone, the nightly lodging rate and the insurance figure.
4. Enter the daily per-person costs for food, activities and local transport. These are amounts for one traveller for one day.
5. Add a shopping figure for the whole trip, then choose a buffer percentage to cover the things you have not thought of.
6. Press the calculate button to produce the breakdown, which lists each block and then the total, the per-person share and the average day.
7. Adjust any single field and calculate again to see how sensitive the total is to that line.

A Seven-Day Trip for Two, Worked Through

Using the page's default values, a seven-day trip for two people with $1,800 in flights, lodging at $120 a night, $80 of insurance, and daily per-person costs of $50 for food, $40 for activities and $15 for transport, plus $200 of shopping and a 10 percent buffer.

• The one-off block is 1,800 plus 80, which is 1,880.
• Lodging is charged for six nights, one fewer than the seven days, so 120 multiplied by 6 comes to 720.
• The daily per-person figure is 50 plus 40 plus 15, which is 105.
• That 105 is multiplied by two travellers and seven days, giving a daily block of 1,470, made up of 700 for food, 560 for activities and 210 for transport.
• The subtotal adds the blocks together: 1,880 plus 720 plus 1,470 plus 200 of shopping, which makes 4,270.
• The buffer is 10 percent of 4,270, or 427, and the total therefore lands at 4,697.
• Divided between two people that is 2,348.50 each, and across the fourteen person-days it averages 335.50 per person per day.

Different Ways to Reason About a Travel Budget

Alternative	Notes
Bottom-up itemising	List every category and add it up, which is what this page does. It is the most accurate method once you have real prices, and the most work to fill in.
Daily rule of thumb	Multiply a per-day rate by the number of days and people. It is fast and useful for early estimates, but it hides the fixed costs, which is exactly the part a long trip dilutes and a short trip does not.
Fixed plus variable split	Separate the costs that do not change with length, such as airfare and insurance, from those that do, such as food and lodging. This makes it clear that a longer trip costs less per day than a short one, because the fixed block is spread thinner.
Buffer sizing	Treat the safety margin as its own decision rather than an afterthought. A small buffer suits a tightly planned domestic trip, while a larger one is more realistic where prices are unfamiliar or the itinerary is loose.

Assumptions the Numbers Carry

The breakdown is arithmetic on the figures you supply, performed in the browser. It does not look up prices, and it does not convert between currencies, so the reliability of the total depends entirely on the quality of the inputs.

• Every amount is treated as a single currency. Mixing currencies would require you to convert before entering the figures.
• Prices are yours, not the tool's; no live fare, room rate or exchange rate is fetched.
• The one-fewer-nights rule is an assumption about how a trip is structured, and it can be wrong for an overnight flight or a stay that begins after a night in transit.
• A fractional day count is allowed, but it is interpreted as a number of whole evenings for the lodging calculation rather than a part-night.
• The destination field is not used in the computation, so two trips with different destinations but identical figures return the same total.
• Nothing you enter is uploaded or stored, and the figures are gone when the page is closed.

Budget Questions

Why is lodging charged for one night fewer than the number of days?

Because the tool assumes the first and last days are travel days, which is the common case for a trip that begins and ends with a flight. A seven-day trip therefore pays for six nights. If your itinerary includes an extra night, add a day to the trip length or raise the nightly rate to compensate.

Are the daily costs per person or for the whole party?

They are per person. The food, activities and transport figures describe one traveller for one day, and the calculator multiplies them by both the number of travellers and the number of days. Entering a party total in those fields would inflate the result.

Does the shopping figure scale with the length of the trip?

No. It is added once as a lump sum for the whole trip, regardless of how many days or people are entered. If your shopping tends to grow with the trip, enter a larger figure rather than expecting the calculator to scale it.

What does the buffer percentage actually cover?

It is a general margin applied to the subtotal for anything the itemised list missed, such as a taxi to the airport, a forgotten fee or a price change. It is deliberately not tied to any specific category; it simply lifts the combined total by the percentage you choose.

Does changing the destination change the total?

No. The destination field is a label that is carried into the result so you can tell two estimates apart. All of the arithmetic is driven by the numeric fields, so the total is unaffected by what you call the trip.

Last verified: October 3, 2026

Launch Trip Budget Calculator

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Maintained by Huang Bin · Last updated October 3, 2026