Free calculators for the math you actually deal with, like splitting dinner tabs without getting shortchanged or converting international grades to a 4.0 scale.
Split restaurant checks, shared appetizers, and group tabs fairly. Pro-rates tax and tip per person with instant copy-and-share summaries.
Calculate unweighted semester GPA, weighted AP and honors classes, target goals, and convert grades from 20 countries to the US 4.0 scale.
State tax rates and grading scales across 20 countries.
Check state base tax rates, local county averages, and grocery or clothing exemptions across all 50 US states.
Grading scales and credit systems for 20 countries mapped directly to the US 4.0 standard.