Wondering how much interest you could earn in a savings account? Here's how to crunch the numbers to calculate your earnings.

Learn how to calculate your annual income, whether you're salaried, hourly, or self-employed. Discover tips for accurate calculations and understanding your financial picture.

CNBC Select explains how to calculate your debt-to-income ratio when applying for a mortgage. Plus: How lenders use your DTI and what's considered a good one.