GradeKiln has a calculator for each country's real grading system, not one 4.0 converter wearing 40 hats. Denmark's minus 3 subtracts. The Philippines runs downward, 1.00 is best. NTU gates Highest Distinction behind more than CGPA. CBSE issues no percentage at all. Every scale is checked against the institution's own published table before it ships. Everything computes in your browser; your transcript never leaves your machine. 73 calculators, 48 countries, 30 languages. Free, no sign-up.