Free Online Financial Tools
Use free online financial calculators for interest, loans, savings goals, budgets, and net worth with private deterministic results.
For informational purposes only. Not medical or financial advice. Results are estimates based on standard formulas.
All Financial Tools
Compound Interest Calculator
Estimate compound growth with contributions and effective annual rate
Simple Interest Calculator
Calculate simple interest totals and interest earned
Loan EMI Calculator
Calculate loan payments, total paid, and total interest
Amortization Schedule Calculator
Generate a payment schedule with principal, interest, and balance
Mortgage Calculator (Basic)
Estimate mortgage payments from price, down payment, rate, and term
Savings Goal Calculator
Find required contributions to reach a savings target
Present Value / Future Value Calculator
Convert present value to future value (and back) with compounding
Inflation Calculator
Compare money value over time with inflation
Break-even Calculator
Calculate break-even units and revenue
Net Worth Calculator
Sum assets and liabilities to estimate net worth
Budget Split Calculator
Split income into needs, wants, and savings
Salary to Hourly Calculator
Convert salary to hourly, weekly, and monthly pay
Personal Finance Visualizer
Analyze bank statements locally from CSV files with private charts and cash-flow summaries
Overview
Financial planning depends on clear assumptions and consistent formulas. This catalog gives you precise calculators for interest, loans, budgets, net worth, and salary conversions so you can plan with confidence. All outputs are deterministic and client-side, which keeps personal data private.
Financial decisions need clarity
Borrowing, saving, and budgeting all rely on assumptions about rates, timelines, and cash flow. Without clear calculators, it is easy to misinterpret costs or underestimate risk.
Comparing scenarios across different tools can lead to inconsistent results, especially when compounding and amortization rules differ. Standardized formulas reduce confusion and improve decision-making.
Sensitive data should remain private. Client-side financial tools allow you to model scenarios without sending data to external servers.
Catalog Breakdown
Interest and growth
Understand how money grows over time with simple and compound calculations.
- Compare simple vs compound interest
- Estimate future value of savings
- Model inflation-adjusted value
Loans and repayment
Calculate payments, schedules, and total cost of borrowing.
- Plan monthly loan payments
- Review amortization schedules
- Estimate mortgage payments
Budgeting and net worth
Track income, expenses, and overall financial health.
- Split budgets by rule
- Calculate net worth quickly
- Compare salary to hourly pay
Business planning
Support operational decisions with break-even and savings goals.
- Estimate break-even points
- Plan savings targets
- Project timelines for goals
How to Use These Tools
Choose the scenario type
Select whether you are planning a loan, savings goal, or budget split.
Enter the core inputs
Provide principal, rate, timeframe, and any recurring contributions.
Review the calculated outputs
Inspect totals, payment schedules, and projected balances.
Compare multiple scenarios
Adjust rates or timelines to understand sensitivity.
Document assumptions
Record the inputs and rate sources for future reference.
Use results for planning
Translate outputs into budgets, timelines, or proposals.
Use Cases
Personal budgeting
Align spending categories with clear monthly targets.
Loan comparisons
Evaluate different interest rates and repayment terms.
Savings planning
Estimate how long it takes to reach a goal.
Compensation analysis
Convert annual salaries to hourly rates for contracts.
Business forecasting
Estimate break-even points for new products.
Inflation awareness
Adjust future value estimates for purchasing power.
Professional Applications
Financial advising
Explain outcomes with transparent, client-friendly calculations.
Operations finance
Model budget splits and performance assumptions.
HR and compensation
Translate pay structures for contractors or internal planning.
Small business owners
Plan savings and break-even benchmarks.
Education
Teach financial literacy with simple calculators.
Best Practices
- Document assumptions for rates and timeframes.
- Compare multiple scenarios to understand risk.
- Use conservative estimates for planning buffers.
- Separate personal and business calculations for clarity.
- Update inputs when market rates change.
- Pair loan results with real contract terms before committing.
- Export and archive results for audits or team review.
FAQs
Are these tools financial advice?
No. They provide mathematical estimates based on your inputs.
Do you store my financial data?
No. Calculations run locally and are not saved.
What formulas are used?
Standard formulas for interest, amortization, and budgeting are applied.
Can I compare multiple loan offers?
Yes. Adjust the rate and term to evaluate differences.
Do results include taxes or fees?
No. You should add taxes and fees manually if needed.
Is inflation included?
Use the inflation calculator to model changes in purchasing power.
Are these calculations exact?
They are deterministic but depend on your inputs and assumptions.
Can I use these for business planning?
Yes. They are useful for preliminary scenarios and estimates.