Finance Tools

Generate valid test credit card numbers using the Luhn algorithm for multiple brands. Export results to JSON, CSV, XML, YAML, TOML, and NDJSON.

Convert annual, monthly, or weekly salary to hourly rate with customizable working hours and detailed calculation breakdown.

Calculate investment returns for lumpsum investments with CAGR, future value, and compound interest calculations. Browser-based history tracking for all calculations.

Calculate gross and net rental yield for property investments. Track rental income, expenses, vacancy rates, and compare property ROI with detailed analysis and log history.

Calculate fair tip distribution based on hours worked. Divide total tips proportionally among employees based on their work hours with detailed breakdown.

Estimate how long it takes for an investment to double using the Rule of 72 formula. Calculate time to double based on interest rate with both approximation and exact calculations.

Calculate credit card debt-to-limit ratio (credit utilization) with support for multiple cards. Helps optimize your FICO score by tracking credit utilization.

Calculate asset depreciation using the straight-line method. Includes depreciation schedule, annual breakdown, and visual chart for accounting and tax purposes.

Project future affiliate marketing earnings with traffic growth, conversion rates, and commission calculations. Visualize income projections over time.

Fun viral calculator to see if your affiliate income can cover your monthly expenses. Get a reality check with emoji reactions and shareable results.