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Shahzad Raja is a veteran web developer and SEO expert with a career spanning back to 2012. With a BS (Hons) degree and 14 years of experience in the digital landscape, Shahzad has a unique perspective on how to bridge the gap between complex data and user-friendly web tools. Since founding ilovecalculaters.com, Shahzad has personally overseen the development and deployment of over 1,200 unique calculators. His philosophy is simple: Technical tools should be accessible to everyone. He is currently on a mission to expand the site’s library to over 4,000 tools, ensuring that every student, professional, and hobbyist has access to the precise math they need. When he isn’t refining algorithms or optimizing site performance, Shahzad stays at the forefront of search engine technology to ensure that his users always receive the most relevant and up-to-date information.

Internal Rate of Return (IRR) Calculator

Internal Rate of Return (IRR) Calculator Initial Investment ($): Cash Flow Year 1 ($): + Add Another Year Calculate IRR Internal Rate of Return (IRR) Calculator: Measure True Investment Efficiency Investment Efficiency Snapshot Metric Direct Utility Project Viability Instantly determines…

Rental Property Calculator

Rental Property Calculator Purchase Purchase Price ($): Down Payment (%): Interest Rate (%): Loan Term (years): Closing Cost ($): Recurring Operating Expenses (Annual) Property Tax ($): Insurance ($): HOA Fees ($): Maintenance ($): Other Costs ($): Income Monthly Rent ($):…

One Rep Max Calculator

One Rep Max (1RM) Calculator Weight Lifted (lbs or kg): Number of Reps Performed: Calculate 1RM Your One Rep Max (1RM) will appear here. One Rep Max Calculator: Estimate Strength & Optimize Training Zones Training Zones Snapshot Goal % of…

Budget Calculator

Budget Calculator Incomes (Before Tax) Salary & Earned Income (per year): Pension & Social Security (per year): Investments & Savings (per year): Other Income (per year): Income Tax Rate (%): Expenses Mortgage (per month): Property Tax (per year): Rental (per…

Refinance Calculator

Refinance Calculator Refinance Calculator Modify the values and click the calculate button to use Current Loan Remaining Balance ($): Monthly Payment ($): Interest Rate (%): New Loan New Loan Term (Years): New Interest Rate (%): Points (% of Loan): Costs…

Lease Calculator

Lease Calculator Lease Calculator Enter the values below and click Calculate to estimate your monthly lease payment. Vehicle Price / MSRP ($): Negotiated Selling Price ($): Down Payment ($): Trade-in Value ($): Sales Tax Rate (%): Residual Value (% of…

Boat Loan Calculator

Boat Loan Calculator Boat Loan Calculator Modify the values and click the calculate button to estimate your boat loan payment. Boat Price ($): Loan Term (Years): Interest Rate (%): Down Payment ($): Trade-in Value ($): Sales Tax Rate (%): Fees…

Personal Loan Calculator

Personal Loan Calculator Personal Loan Calculator Enter your loan details below and click Calculate to see your payment schedule. Loan Amount ($): Annual Interest Rate (%): Loan Term (Years): Calculate Enter values and click Calculate Personal Loan Calculator: Amortization Schedules…

Take Home Paycheck Calculator

Take-Home-Paycheck Calculator Your job income (salary) Pay frequency WeeklyBi-weeklySemi-monthlyMonthlyYearly File status SingleMarriedHead of Household Number of children under age 17 Number of other dependents Other income (not from jobs) Pretax deductions withheld Deductions not withheld Itemized deductions Has 2nd, 3rd…

Debt-to-Income (DTI) Ratio Calculator

Debt-to-Income (DTI) Ratio Calculator Incomes (Before Tax) Salary & Earned Income / Year Pension & Social Security / Year Investment & Savings / Year Other Income / Year Debts / Expenses Rental Cost / Month Mortgage / Month Property Tax…