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Does your student budget add up?

A lightweight monthly dashboard for income, expenses, and savings while you study.

Logic updated April 2026

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This calculator builds a complete monthly student budget by summing income from all sources (part-time wages, family support, loans, scholarships, other) and subtracting expense categories (rent, utilities, food, transport, course materials, phone, subscriptions, entertainment, savings target, other). It computes the surplus or shortfall, derives a savings rate, and breaks down each side by percentage.

How this is calculated

Formula

totalIncome = sum(income categories) ; totalExpenses = sum(expense categories) ; surplus = income − expenses ; savingsRate = (surplus + savingsTarget) / income × 100

Step-by-step

Sum all five income categories: part-time wages, family support, loan disbursement, scholarship income, and other income
Sum all ten expense categories: rent, utilities, food, transport, course materials, phone, subscriptions, entertainment, savings target, and other
Compute surplus or shortfall: total income minus total expenses
Compute savings rate: (surplus + savings target) ÷ total income × 100 — captures both intentional savings and accidental surplus
Build per-category percent breakdowns so you can see where the dollars are going
If shortfall is positive, calculate how many months current savings would last as a buffer

Rounding mode: ROUND_HALF_UP
Precision: 20-digit internal precision (Decimal.js), rounded to 2 decimal places for display
Logic last reviewed: 2026-04-30

Assumptions & limitations

What this calculator assumes

All income and expense values are monthly figures supplied by the user
Loan disbursement and scholarship income are user-supplied monthly equivalents
Savings target is treated as an expense — money set aside before discretionary spending
Internationally neutral — no jurisdictional benefits, tax, or assistance schemes
Months-until-savings-run-out is capped at 600

What this calculator doesn’t account for

Doesn't model irregular income (lump-sum scholarship payments, semester-tied loan disbursements)
Doesn't include one-off costs (textbooks at semester start, conference travel, security deposits)
Doesn't handle academic-year vs calendar-year differences
Doesn't include any safety-net programmes, rent assistance, or hardship grants
Doesn't model semester breaks where part-time hours often increase

Worked example

A student with $400/month part-time wages, $300/month family support, $800/month from loans, $200/month scholarship, $500/month rent, $150 utilities, $400 food, $80 transport, $100 course materials, $50 phone, $30 subscriptions, $150 entertainment, $100 savings target, $80 other.

Input	Value
Total income (monthly)	$1,700
Total expenses (monthly)	$1,640

Surplus: $60 — Savings rate: ~9.4% — Largest expense: rent (30%)

Income totals $1,700; expenses total $1,640 (including $100 explicit savings target). The actual surplus is $60 on top of the $100 already directed to savings — so total savings activity is $160/month, a 9.4% savings rate. Rent is the biggest single expense at 30% of income — a typical share for students. The budget is balanced but tight; any unplanned cost would push it into deficit.

Frequently asked questions

How do I create a student budget?

Start by listing every source of income and every regular expense by category. Use this calculator to plug them in and see the surplus or shortfall. The most useful exercise is doing it monthly — most students underestimate food, transport, and one-off costs by 30–40%. After two months of tracking real numbers against your budget, the picture becomes accurate enough to plan with.

What are typical student expenses?

Rent is usually the biggest single line (25–40% of income). Food typically takes 15–25%. Transport, utilities, phone, and entertainment together take 15–25%. Course materials are seasonal — heavy at semester start, lighter mid-term. The right percentages vary widely by location and lifestyle; the calculator lets you set your own numbers and see how they compare.

How do I handle irregular income?

Convert lump sums to monthly equivalents. A scholarship of $4,800 paid annually = $400/month. Loan disbursements paid each semester = total annual amount ÷ 12. Family support that arrives in lumps = total received over the year ÷ 12. Variable wages: average over the past 3 months. The calculator works in monthly figures, so the conversion is a one-time exercise that keeps the budget meaningful.

What percentage should go to rent?

Common guidance is 25–35% of income for housing. For students this is often unrealistic — rent in university towns can easily take 40–50% of a part-time-plus-loans budget. If rent is over 40%, the rest of the budget gets very tight; consider shared housing, on-campus options, or moving to a less central area. Some students consciously accept high rent for convenience, balancing it against other categories.

What if I'm running a deficit every month?

The calculator flags it explicitly and shows how long current savings would last at that burn rate. The fix is structural: increase income (more hours, applying for grants, talking to financial aid), decrease expenses (cheaper rent, fewer subscriptions, more home-cooked meals), or borrow more (knowing the post-graduation cost). Most students do all three. Running a deficit on loans is a deliberate cash-flow choice; running one on emergency savings is a warning to act quickly.

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