Depreciation Calculator – Straight Line, DDB & MACRS
Calculate depreciation using straight-line, double declining balance, SYD, or MACRS methods. Useful for accounting, tax, and asset management.
Discount Calculator – Sale Price & Savings Tool
Quickly calculate discount, sale price and savings. Perfect for shoppers, marketers, and e-commerce pricing decisions.
Interest Calculator – Simple, Compound, APR ↔ APY
Calculate simple and compound interest. Compare APR vs APY for savings, loans, and credit cards using our interest calculator.
Investment Calculator – Growth & Future Value Tool
Calculate investment growth with contributions, inflation, and compounding. Plan savings and retirement with our investment calculator.
Loan Calculator – Payments & Amortization Schedule
Calculate loan payments, amortization schedules, and interest savings. Use our loan calculator for mortgages, auto, and personal loans.
NPV & IRR Calculator – Investment Analysis Tool
Calculate Net Present Value (NPV) and Internal Rate of Return (IRR) with our investment calculator. Evaluate projects using discounted cash flow analysis.
Refinance Calculator – Savings & Break-Even Tool
Calculate savings, break-even point, and interest reduction with our refinance calculator. Compare mortgage refinance options easily.
Retirement Calculator – Savings & Income Planning
Plan retirement savings and income with our retirement calculator. Estimate nest egg, withdrawals, and pension needs using the 4% rule.