11 tools

Math Tools

Scientific calculators, percentage tools, unit converters, and mathematical utilities for quick computations.

Multi-mode percentage calculator. Find X% of Y, X as % of Y, or % change between values.

Calculate monthly mortgage payments, interest, and amortization.

Split complex restaurant bills and tips evenly across your party.

Calculate the tip, split the check, and round totals intelligently for dining out.

Convert between major world currencies with simulated rates.

Estimate personal loan and auto loan repayment schedules.

Convert between hourly, weekly, monthly, and annual salaries.

Calculate exact age in years, months, weeks, days, and seconds.

Calculate aspect ratios and resize dimensions proportionally.

Calculate the minimum final exam score needed to reach your desired course grade.

Calculate your semester and cumulative GPA from course grades and credit hours.