Monthly Budget Calculator — Track Income & Expenses | Free Edu & .COM Temporary Mails
← すべてのツール / Budget Calculator

Monthly Budget Calculator

Track your monthly income and expenses to see your surplus or deficit.

Income
$
$
$
Expenses
$
$
$
$
$
$
$
$
Total Income
$0
Total Expenses
$0
Remaining
$0
Savings Rate: 0%

What is a Monthly Budget Calculator?

A monthly budget calculator helps you understand where your money goes by comparing total income to total expenses across different spending categories. Budgeting is the foundation of personal finance — without a clear picture of inflows and outflows, it is impossible to save effectively, reduce debt, or plan for future goals. A good budget shows you not just whether you have a surplus or deficit, but exactly which category is consuming the most of your income.

Our calculator breaks expenses into eight standard categories — Housing, Food, Transport, Utilities, Entertainment, Healthcare, Savings, and Other — and shows a color-coded progress bar breakdown so you can visually see how your spending is distributed. The savings rate metric shows what percentage of your income you are setting aside, which is one of the most important personal finance indicators.

How to Use the Budget Calculator

  1. を入力してください monthly income from each source — salary, freelance, and other. Add rows as needed.
  2. を入力してください monthly expenses for each category. Use average or typical monthly amounts.
  3. Results update instantly — see Total Income, Total Expenses, Remaining Balance, and Savings Rate.
  4. Review the category breakdown bars to see which areas consume the most of your budget.

Why Use Our Budget Calculator?

  • Category Breakdown — Visual progress bars show spending allocation at a glance.
  • Savings Rate Metric — See what percentage of income you are actually saving.
  • Flexible Income Rows — Add multiple income sources for accurate totals.
  • 100% Free & Private — No account required; all data stays in your browser.
  • Live Results — Every number updates as you type.

よくある質問

The 50/30/20 rule is a simple budgeting framework popularized by Senator Elizabeth Warren. It suggests allocating 50% of after-tax income to needs (housing, food, utilities, transport, healthcare), 30% to wants (entertainment, dining out, subscriptions, hobbies), and 20% to savings and debt repayment. It is a starting point, not a rigid rule — adjust the percentages to fit your specific situation and goals.

Most financial experts recommend saving at least 15–20% of your gross income, including employer retirement contributions. If you are starting from zero, even 5–10% is a meaningful start. Priorities in order: build a 3–6 month emergency fund first, then maximize any employer 401(k) match (free money), then contribute to an IRA, then invest additional savings. The exact amount depends on your goals, debts, and time horizon.

A savings rate of 20% or more is considered excellent. 10–15% is good and in line with many financial guidelines. Below 5% is a warning sign. The FIRE (Financial Independence, Retire Early) movement advocates savings rates of 50–70% to retire much earlier than traditional retirement age. Your ideal savings rate depends on your target retirement age — the earlier you want to retire, the higher the rate needs to be.

Start by identifying your largest expense categories — often Housing, Food, and Transport represent 60–70% of spending. For housing: consider refinancing, downsizing, or getting a roommate. For food: cook at home more often, meal prep, and reduce food waste. For transport: carpool, use public transit, or refinance a car loan. Audit subscriptions quarterly and cancel unused ones. Use cashback cards for necessary purchases. Small recurring expenses add up significantly over a year.

概要

  • ✓ 8 expense categories pre-loaded
  • ✓ Add unlimited income sources
  • ✓ Visual category breakdown bars
  • ✓ Savings rate calculated automatically
  • ✓ 100% free and private

関連ツール