Student Budget Calculator

A student budget calculator is a monthly budget planner that adds up your income and expenses so you can see exactly what is left over. Enter your income and spending in the calculator above and the totals, savings rate and 50/30/20 check update instantly — all in your browser, with no signup.

Use your average monthly income: add up what you earned over the last three months and divide by three. Enter that figure as one income row, or split it into separate rows (job, allowance, side gig) for clarity. Budget against the average, and save the surplus in good months to cover the lean ones.

The 50/30/20 rule is a simple budgeting guideline: about 50% of your income goes to needs (housing, food, transport), 30% to wants (subscriptions, fun), and 20% to savings. This calculator classifies your expenses that way automatically and tells you where you stand versus each target.

Aim for 20% of your income if you can — that is the savings leg of the 50/30/20 rule. If that is out of reach right now, start smaller: even 5–10% builds the habit and an emergency cushion. The savings rate readout above shows your exact percentage so you can watch it grow.

Track the big ones first: housing (rent or dorm fees), food (groceries and eating out), and transport. Then add the small recurring costs students often forget — subscriptions, phone bills, course materials, and fun money. Small leaks like unused subscriptions are usually the easiest wins.

Start with wants: cancel subscriptions you rarely use, cook more instead of ordering in, and set a weekly fun budget. Then check needs: splitting housing, buying used textbooks, and using student transit discounts can cut the biggest line items. The category breakdown above shows exactly where your money is going so you can target the largest bars first.

Your budget is saved in your own browser using localStorage, so it is there when you come back on the same device. Nothing you enter is sent to a server or any third party — there is no account and nothing to sign up for.

The remaining amount turns red and the verdict tells you exactly how far over budget you are. Cover the gap by trimming wants first (subscriptions and fun spending are the easiest to cut), then look for ways to raise income — more shifts, a side gig, or selling things you do not use.

Enter a monthly savings goal in the Summary card — for example $100 toward an emergency fund or a spring-break trip. The calculator compares your remaining money to the goal and tells you whether you are on track, or exactly how much more you need. Your goal is saved on your device along with the rest of your budget.

Your daily spending allowance is your remaining monthly money divided by 30 — roughly what you can spend per day without blowing the budget. It appears in the Summary card and updates live as you type, so you can see the daily impact of every expense you add.

Yes. It is completely free with no account, no signup, and no paywall — part of The Magic Codex's collection of free student tools.