Travel Budget Calculator in a Note

Plan flights, hotel nights, daily food and a safety buffer in one note, convert the total to the local currency, and split it per person. Copy the example into Calto.

Updated: 2026-09-16

A spreadsheet is overkill for a trip and a calculator forgets the numbers. This is the whole plan in one note. Every line updates as you change a number.

The example

Trip budget

flight = 450
hotel = 89 * 3
food = 50 * 4
transport = 35
shopping = 120

stay = flight + hotel          → 717
extras = food + transport      → 235
trip = stay + extras + shopping → 1,072

each = trip / 2                → 536
buffer = trip * 0.1            → 107.2

Why it works this way

  • Name every number. hotel = 89 * 3 reads as “three nights at 89” six months later. A bare 267 does not.
  • Blank lines are sections. The costs, the subtotals and the per-person split are separated so sum would only see the group you mean.
  • Change one thing, see everything. Add a night: hotel = 89 * 4. stay, trip, each and buffer all update.

In the local currency

Give the numbers a currency and convert the total in one line. Rates are live, so treat the figures here as illustrative.

flight = $450
hotel = $89 * 3
food = $50 * 4
sum in yen                     ≈ ¥136,000

sum collects the section; in yen converts it. sum in krw, sum in euro work the same way.

Splitting between friends

trip = 1072
people = 4
trip / people                  → 268

Or as a proportion, when one person pays a larger share: 1072 : 4 = ? : 1 → 268.

Days and dates

today + 12 days                → departure
today + 19 days                → return

Calto adds days, weeks, months or years to today.

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