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50/30/20 Budget Rule Calculator

Budgeting rule for income allocation

KRW

Savings & investing (20%)

600,000KRW

💡 Saving 600,000 KRW every month adds up to 7,200,000 KRW a year!

Needs (50%)
1,500,000KRW
Wants (30%)
900,000KRW

How it works

The 50/30/20 rule is a widely used budgeting formula: 50% of your net income to needs (housing, food, utilities), 30% to wants (hobbies, dining out, shopping), and 20% to savings and investing. Treat the ratios as a starting point, not an absolute rule — adjust the needs share upward if your fixed costs run high.

FAQ

Q. Should I use pre-tax or post-tax income?

A. No — use your after-tax take-home pay, the amount that actually lands in your account.

Q. What if 20% savings feels too tight?

A. Starting at 10% and working up is fine — the important thing is building the savings habit.

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