Credit Card Interest Calculator
Estimate credit card interest charges from balance, APR, and payment details, and see how different payments change the monthly cost.
Credit Card Interest Calculator
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Olga Chernova is an equity research analyst and final year Economics and Finance student at the American University in Bulgaria, with hands on experience in valuation and financial modeling. She has passed CFA Level I and contributed to a 2nd place team in the 2025-2026 CFA Institute Research Challenge in Bulgaria. At Eon Tools, she reviews finance tools.