What is the Travel Budget Calculator?
The Travel Budget Calculator helps you estimate the full cost of a trip before you book it. Instead of guessing, you enter your main expenses — flights, lodging, food, activities and local transport — and instantly see your total spend, the cost per traveler, and the average cost per day. This makes it easy to compare destinations, split costs fairly among friends, and decide whether a trip fits your budget.
How to use it
Fill in each field with your best estimate. Flights, activities and local transport are entered as trip totals. Hotel is entered per night and multiplied by the number of nights, while food is entered per day and multiplied by your number of days. Finally enter how many travelers are going. The calculator returns the grand total plus handy breakdowns.
The formula explained
The core equation is:
Worked example
Suppose flights cost 400, a hotel is 90 per night for 6 nights, food is 40 per day for 7 days, activities total 200, and local transport is 80, for 2 travelers. Lodging is 90 × 6 = 540 and food is 40 × 7 = 280.
使用注意事項與精準校對原則（6 大核心守則）
📐 1. 嚴格對齊輸入量綱與單位
輸入各項數值時請務必確認量綱（例如小時、天數、金額、百分比），避免單位不匹配引發推算偏差。
🔒 2. 純前端本機毫秒級隱私保障
所有計算邏輯 100% 在您的終端瀏覽器內完成，資料絕不上傳伺服器，嚴格守護商業與個人隱私。
📊 3. 符合公認學術與產業計算模型
演算法嚴格遵循國際通用數學公式與標準計算模型，經多重情境交叉核對，數值嚴密精確。
📋 4. 一鍵複製與免登入 PDF 匯出
支援一鍵複製推算結果字串至剪貼簿，亦可直接點擊列印按鈕輸出純淨 PDF 工作報表。
🔄 5. 多情景敏感度動態對比
建議針對極端值與多組預期情景分別試算，觀察輸出數據的波動區間，輔助做出更穩健的決策。
🛡️ 6. 專業諮詢與日常參考免責聲明
本工具運算結果供日常排程、學業研習與事前參考之用，如涉及重大法規或投資決策請諮詢持證專家。