Free Percentage Calculator 2026

To calculate what percentage X is of Y, use the formula: Percentage = (X ÷ Y) × 100. For example, if you scored 450 marks out of 600, your percentage = (450 ÷ 600) × 100 = 75%. To find X% of Y, use: Value = (X ÷ 100) × Y. For example, 30% of 500 = (30 ÷ 100) × 500 = 150.

Percentage increase = ((New Value − Old Value) ÷ Old Value) × 100. If a salary increases from ₹40,000 to ₹50,000, the increase = ((50,000 − 40,000) ÷ 40,000) × 100 = 25%. Percentage decrease uses the same formula — a negative result means a decrease. For example, marks dropping from 80 to 60 = ((60 − 80) ÷ 80) × 100 = −25%, meaning a 25% decrease.

For most government job applications in 2026, use the UGC/CBSE standard formula: Percentage = CGPA × 9.5. For example, 8.0 CGPA = 76%. However, Anna University and most state engineering universities use CGPA × 10. Always use your own university's official formula when submitting to UPSC, SSC, IBPS, or PSU applications, as incorrect conversion can disqualify you at the document verification stage.

Most central government jobs require a minimum 50–60% in graduation. SSC CGL and CHSL require a basic graduation without a minimum percentage for most posts. Banking exams (IBPS PO, SBI PO) typically require 60% aggregate. PSU jobs through GATE (BHEL, ONGC, NTPC) require 60% (6.5 CGPA) in engineering. UPSC Civil Services requires only a graduation degree with no minimum percentage, though merit in graduation helps in interview.

To calculate percentage in board exams: add all subject marks, divide by total maximum marks, multiply by 100. Example: if you scored 85+90+78+92+88 = 433 out of 500, percentage = (433 ÷ 500) × 100 = 86.6%. For CBSE Class 10, only the best 5 subjects are counted. For Class 12, all 5 main subjects are counted. The percentage is rounded to 2 decimal places in most official certificates.