📊ファイナンス
予算計算機
Enter your monthly income and expenses to get an instant budget breakdown. See how your spending compares to the 50/30/20 rule — 50% needs, 30% wants, 20% savings. Free, no signup.
Monthly Expenses
Housing (rent/mortgage)
$
Groceries
$
Transportation
$
Utilities & Insurance
$
Dining Out
$
Entertainment
$
Subscriptions
$
Savings / Investments
$
Emergency Fund
$
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How it works
This 予算計算機 runs entirely in your browser — no data is sent to any server. Simply fill in the fields above and the result updates instantly. You can copy the output with the copy button provided.