日常財務

預算分配、分期實際利率、存款目標、通膨購買力試算。輸入即時出結果。

NT$
需要 50%(房租、餐食、交通、保險)$30,000
想要 30%(娛樂、購物、旅行)$18,000
儲蓄/還債 20%$12,000

50/30/20 法則由參議員 Elizabeth Warren 推廣:將稅後收入分為必要支出 50%、非必要支出 30%、儲蓄與還債 20%。

Everyday Budgeting & Finance

Master your cash flow, handle installment buys, and build practical budgets.

What this calculator does

Personal finance success hinges heavily on disciplined cash flow management rather than sophisticated stock picking. Knowing your household expense limits, exposing the hidden interest rates behind 'zero percent' installments, and charting savings goals builds wealth steadily. This category provides 4 daily financial tools covering monthly budgeting (50/30/20 framework), consumer installment logic, savings mapping, and baseline inflation adjustments. Whether you are budgeting as a recent graduate or planning to buy your first home, start here to control your money.

Worked examples

  • On a monthly income of 6,000 using standard 50/30/20 splits: limit 3,000 to needs, 1,800 to wants, and funnel 1,200 immediately into savings or debt repayment.
  • Financing a 3,600 phone via monthly 300 installments over a year. If they bundle a 3% upfront fee, the true annualized interest rate translates far closer to 5.5%—hardly zero cost.

Frequently asked questions

Is the 50/30/20 rule perfectly suited for everyone?
It's an excellent launchpad, but flexible realities apply. In high-cost-of-living metropolitan areas, housing needs might force a 70/15/15 ratio. Adjust based on realism to prevent budget burnout.