Skip to main content
Calcureal logoCalcuReal
مالیات

Simple Interest Calculator

Calculate total interest earned or paid, final amount, and year-by-year schedule. Compare simple vs compound interest to see the compounding advantage over time.

No sign-upFree forever5 languagesLive exchange rates
Simple vs compound comparisonFlat-rate to APR conversionFormula verified July 2026
Live Rates
Live rates
$

Initial deposit or loan amount

%
yrs
📈

Enter your values to see results

حل شدہ مثالیں

Short-term loan: AED 5,000 at 8% for 6 months

I = 5,000 x 0.08 x 0.5 = AED 200. Total repayment = AED 5,200. With compound interest (monthly compounding), total would be AED 5,202.01 — a AED 2.01 difference. Simple interest is almost identical to compound for short durations and modest rates.

Savings over 3 years: AED 20,000 at 4.5% simple interest

I = 20,000 x 0.045 x 3 = AED 2,700. Total = AED 22,700. With monthly compounding at the same rate: AED 22,889 — AED 189 more from compounding. The difference grows with time: at 10 years, the gap would be approximately AED 2,060 more from compound interest.

When simple interest is used in real life

Simple interest applies to some short-term personal loans and payday lending, US Treasury bills, certain Islamic finance products, and trade credit terms (net 30/60/90 day invoicing with a fixed late payment charge). For most bank deposits and mortgages, compound interest applies.

اکثر پوچھے گئے سوالات

~4 min read
What is simple interest?▾
Simple interest is calculated only on the original principal, not on accumulated interest. The formula is I = P x r x t, where P is the principal, r is the annual interest rate as a decimal, and t is the time in years. AED 10,000 at 5% simple interest for 3 years earns 10,000 x 0.05 x 3 = AED 1,500 total interest. This is less than compound interest, where each year's interest adds to the principal before the next calculation.
What is the difference between simple and compound interest?▾
Simple interest: calculated on the original principal only. AED 10,000 at 5% simple earns AED 500/year every year. After 10 years: AED 15,000. Compound interest: calculated on the growing balance. AED 10,000 at 5% compounded annually grows to AED 16,289 after 10 years. Compound interest earns AED 1,289 more over 10 years, and the gap widens dramatically at longer time horizons.
When is simple interest used vs compound interest?▾
Simple interest is used for short-term loans (some car and personal loans), trade credit, some government bonds and treasury bills, and as a basis for flat-rate loan advertising. Compound interest is used for savings accounts and fixed deposits, mortgages, credit cards, and most long-term financial products. In the UAE, savings accounts and mortgages use compound interest.
How is simple interest calculated for partial years?▾
For periods less than a year, t is expressed as a fraction: t = days / 365. For 90 days at 6% simple interest: t = 90/365 = 0.2466. Interest = P x 0.06 x 0.2466. Some bond markets use a 360-day year (called banker's rule). Always check the day count convention when computing short-term instrument returns.
Does any UAE bank offer simple interest savings accounts?▾
UAE banks generally apply compound interest on savings and deposit accounts — this is standard for regulated financial institutions under CBUAE guidelines. Some Islamic finance products structured to avoid riba may use profit-sharing or murabaha mechanisms that functionally resemble simple interest in their calculation, but they are not technically interest under Islamic law.
What is a flat rate loan in the UAE?▾
A flat rate loan calculates interest on the original loan principal for every payment period, regardless of how much principal has been repaid. This is mathematically equivalent to simple interest applied to the original balance. AED 50,000 at 5% flat for 3 years: total interest = 50,000 x 0.05 x 3 = AED 7,500. The true APR (reducing balance equivalent) is approximately 9.3% — nearly double the stated 5% flat rate.
How much interest will I earn on AED 100,000 for 1 year?▾
At simple interest: AED 100,000 x r x 1 = 100,000r. At 3%: AED 3,000. At 4%: AED 4,000. At 5%: AED 5,000. At 5.5%: AED 5,500. At monthly compounding, these amounts are slightly higher: at 5%, the monthly compound interest = AED 5,116 (APY 5.116%).
Can I use simple interest to estimate savings returns?▾
For periods under 2 years, simple and compound interest produce very similar results (within 1-2%). For longer periods or higher rates, the compounding effect becomes significant and simple interest will underestimate actual savings growth. For 10+ year projections, always use compound interest calculations.

متعلقہ ٹولز

Compound Interest Calculator

APY Calculator

Savings Goal Calculator

Rule of 72

CAGR Calculator

ROI Calculator

50/30/20 Budget Calculator

Mortgage Calculator

Simple interest calculations are mathematically exact given the inputs. Real loan and deposit products may use different day count conventions — verify terms with your financial institution.

Your data is processed locally in your browser. See our Privacy Policy.