Last updated: March 2, 2026 by Dr. David Park

What Is an Annuity?

Formula

An annuity is a series of equal payments made at regular intervals over a fixed period.

This calculator computes both the present value (lump sum equivalent today) and future value of an annuity.

Common use cases:

  • Retirement income planning
  • Valuing structured settlements
  • Loan analysis

Frequently Asked Questions

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Dr. David Park

Applied Mathematician, PhD Mathematics

David holds a PhD in Applied Mathematics from MIT. He has published research on numerical methods and computational algorithms used in engineering and scientific calculators.

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