Trip Budget Math: Per Day, Per Person, and a Contingency Buffer
October 29, 2026
A trip budget starts with the big fixed costs (flights and lodging), adds variable daily costs (food, local transport, activities), and ends with a buffer for surprises. Writing it as a table makes it easy to compare destinations, decide how much to save each month, and set a daily spending limit to track on the trip.
Consider a couple taking a 15-day trip with 14 nights of lodging at $120 a night, flights of $900 each, food of $60 per person per day, local transport of $25 per person per day, and activities of $40 per person per day.
Skip the math and get your answer instantly:
Open the Savings Goal Calculator →Building the Budget
Lodging: 14 nights × $120 = $1,680 (shared between the two). Flights: 2 × $900 = $1,800. Food: $60 × 15 days × 2 people = $1,800. Local transport: $25 × 15 × 2 = $750. Activities: $40 × 15 × 2 = $1,200. The subtotal is $7,230. A contingency of 10% adds $723, giving a total of $7,953. That is $530 per day for the couple and $3,977 per person.
Also consider the extras that are easy to forget: travel insurance (4% to 8% of trip cost), visas, airport transfers, baggage fees, foreign transaction fees, tips, souvenirs, and pre-trip costs such as vaccinations or gear.
| Category | Calculation | Cost |
|---|---|---|
| Lodging | 14 nights x $120 | $1,680 |
| Flights | 2 x $900 | $1,800 |
| Food | $60 x 15 x 2 | $1,800 |
| Local transport | $25 x 15 x 2 | $750 |
| Activities | $40 x 15 x 2 | $1,200 |
| Subtotal | $7,230 | |
| Contingency 10% | $723 | |
| Total | $7,953 |
Saving for the Trip
If the trip is 10 months away and you save evenly, you need $795 a month. If you can only save $500, either extend the date to 16 months or reduce the budget. Levers that save money: travel in the shoulder season (often 20% to 40% cheaper), choose lodging with a kitchen to cut food costs, book flights flexibly, and use transit passes. Look at fixed costs first because they are the largest share: flights and lodging are 49% of this budget.
Daily Allowance During the Trip
The flexible categories (food, transport, activities) total $4,500 in this plan, or $300 a day for the couple. Treat this as a daily allowance and track the running balance. If you spend $340 on day 1, you have $260 of margin left for the day after, or an average of $294 for the remaining 14 days. An allowance makes it easy to balance an expensive dinner with a cheap lunch the next day. Keep the contingency separate for emergencies.
Currency and Payment Notes
Convert the budget into the local currency using a realistic exchange rate that includes fees, and use a card with no foreign transaction fee. Carry a small amount of cash for places that don't accept cards. Notify your bank, and keep a backup card. If prices are quoted in the local currency, calculate the conversion factor once (for example, local price ÷ 8.0 = USD) so you can estimate quickly while shopping.
Frequently Asked Questions
How much contingency should a trip budget include?
Typically 10% to 15%.
How do I find the cost per day?
Divide the total trip cost by the number of days.
What costs do travelers forget?
Insurance, baggage fees, visas, transfers, tips, and foreign transaction fees.
How can I set a daily spending limit?
Total the flexible categories and divide by the number of days.
What is the best way to reduce trip cost?
Travel in the shoulder season and cut the biggest fixed costs, flights and lodging.