Cash flow is simple: money in minus money out. But most people have no idea what their actual monthly cash flow looks like until they're staring at an empty bank account two weeks before payday. This calculator makes it visible before that happens.
Step 1. Enter your total monthly take-home income. If it varies, use a conservative average from the last three months.
Step 2. Break your expenses into fixed costs (rent, loan payments) and variable costs (food, entertainment). Be honest — overestimating is better than underestimating.
Step 3. Enter your planned monthly savings contribution. The remaining amount is your actual free cash flow.
With the default inputs loaded in the form, the calculator produces a starting result you can use as a baseline. Change one field at a time to compare a new scenario.
Positive cash flow means you have money left after all expenses. Negative cash flow means you're spending more than you earn — and if you're doing that consistently, you're either draining savings or going into debt. The number on this calculator tells you which world you're living in right now.
There's an important difference between fixed and variable expenses. Fixed expenses — rent, insurance, loan payments — are predictable and hard to change quickly. Variable expenses — food, entertainment, shopping — fluctuate and are usually where people find extra money when they need it.
If your cash flow is positive but you're not building savings, the money is going somewhere you haven't accounted for. Small purchases, impulse buys, and forgotten subscriptions are the usual culprits. Run this calculator alongside your actual bank statement for one month and the discrepancy will usually become obvious.
Cash flow is what happens each month — income versus spending. Net worth is the cumulative result over years. Good cash flow builds net worth over time; negative cash flow erodes it.
For your baseline cash flow, use only regular reliable income. Treat bonuses and irregular income as a bonus when they arrive — don't build your monthly budget around them.
Variable expenses are your fastest lever. Review streaming subscriptions, dining out, and impulse purchases first — these can often be cut by $200 to $400 a month without significantly affecting quality of life.
Enter your monthly income and key expense categories to instantly see your surplus, deficit, and savings rate.
Add up your assets and liabilities to calculate your real net worth — the true measure of your financial position.
Calculate your emergency fund target based on monthly expenses and see exactly how much more you need to save.
Calculate how many months it will take to reach your savings goal based on your current balance and monthly contributions.
Disclaimer: Results from this calculator are for informational and planning purposes only and do not constitute financial, legal, or professional advice. Always verify important calculations with a qualified professional.
