JB HerWealth

Budgeting

Free budget calculator for Sri Lanka

Enter one number you already know, your monthly income after tax, and see what a workable split looks like in rupees. Adjust the ratio until it matches the life you actually live.

How this budget calculator works

Step 01

Put in your monthly income after tax, the amount that actually reaches your account.

Step 02

Choose a ratio: 50/30/20 classic, 60/20/20 if your cost of living is high, or 50/20/30 if you are saving hard.

Step 03

Get back the rupee value of each of the three portions.

Step 04

See it as a single bar you can read at a glance, so the split stops being abstract.

FAQ

Curious? Here's what women ask before they start.

If your question isn’t here, reach out at [support email] and we’ll answer.

What is the 50/30/20 rule?

It is a budgeting guide that puts 50% of your income after tax towards needs, 30% towards wants and 20% towards savings. It is a starting shape rather than a law, and the calculator lets you change the ratio.

What counts as a need and what counts as a want?

Needs are the things that keep your life running: rent, utilities, food, transport, school fees, insurance and minimum loan payments. Wants are everything you would still be fine without this month. The line moves from household to household, which is why the lesson spends time on it.

What if my needs are more than 50% of my income?

That is common when the cost of living is high. Use the 60/20/20 ratio instead, which is built for exactly that situation, and protect the savings portion rather than the wants portion.

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