Loan Calculators

LoanLab guides

Plain-language answers to loan calculators questions, written from the same sourced data behind LoanLab. Every guide lists its sources and the date it was last updated.

• Updated June 10, 2026

  Does a longer loan term actually save you money?

  Borrowing $15,000 at 9% APR over 24, 36, or 60 months: see exactly how each term changes your monthly payment and total interest.

• Updated June 10, 2026

  How much does paying extra each month shorten a loan?

  Adding $50 or $100 a month to a 60-month loan at 9% APR cuts payoff time by 10-17 months and saves up to $1,093 in interest.