Math & Education
Percentages, ratios, fractions, grades and number systems. Homework-friendly calculators that show the working, not just the answer.
Final Grade Calculator The score you need on the final exam to hit your target grade. Fraction to Decimal Converter Convert fractions to decimals and percentages, and back again. GPA Calculator Grade point average from up to six courses, weighted by credits. Percentage Calculator Four percentage questions answered, with the working shown. Ratio Calculator Simplify a ratio, split a total, or solve A:B = C:D. Roman Numeral Converter Numbers to Roman numerals and Roman numerals back to numbers.