Byaj Calculator – How Is Byaj (Sekda) Calculated?

Byaj (also called sekda) is calculated as ₹ per ₹100 per month × principal × number of months. ₹2 sekda means ₹2 interest per ₹100 every month, equal to 24% per year (2 × 12). Byaj Calculator also computes simple and compound interest, with yearly, half-yearly, quarterly or monthly compounding.

Worked examples

Byaj: ₹1,00,000 at ₹2 sekda (per ₹100 per month) for 12 months = ₹1,00,000 × (2 ÷ 100) × 12 = ₹24,000 interest, total ₹1,24,000.

Simple interest: ₹1,00,000 at 12% for 2 years = ₹1,00,000 × 12% × 2 = ₹24,000 interest, total ₹1,24,000.

Compound interest: ₹10,000 at 12% compounded monthly for 1 year matures to ₹11,268.25 – ₹1,268.25 interest.

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How is byaj (sekda) calculated?

Byaj = principal × (rate ÷ 100) × months, where rate is rupees of interest per ₹100 per month. ₹2 sekda on ₹1,00,000 for 12 months is ₹1,00,000 × (2 ÷ 100) × 12 = ₹24,000.

What is sekda/byaj?

Sekda (byaj) is the moneylender's way of quoting interest: a rate of ₹X per ₹100 lent, per month. ₹2 sekda means ₹2 interest on every ₹100 borrowed, each month.

How does byaj differ from simple interest?

Byaj and simple interest use the same principal × rate × time maths, just quoted differently — byaj as rupees per ₹100 per month, simple interest as a percentage per year. ₹2 sekda per month equals 24% simple interest per year.

How do you convert a byaj rate to a yearly percentage?

Multiply the byaj rate by 12: ₹2 sekda per ₹100 per month is 2% a month, so 2 × 12 = 24% per year.

What is the difference between compound and simple interest?

Simple interest is principal × rate × time, always on the original principal. Compound interest adds each period's interest back into the principal before the next period, so it grows faster — ₹10,000 at 12% compounded monthly for 1 year earns ₹1,268.25, more than the ₹1,200 simple interest would give.

How does quarterly or monthly compounding work?

Byaj Calculator lets you choose yearly, half-yearly, quarterly or monthly compounding. Compounding more often applies interest more often, so the same annual rate yields a slightly higher return the more frequently it compounds.

Does Byaj Calculator work offline?

Yes. All byaj, simple and compound interest maths runs on-device, with no internet connection, account or sign-in needed.

Does Byaj Calculator give loans?

No. It is a calculator only — it does not lend money, collect personal data or connect to any lender.

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