# Future Value of $1 Annuity Table (FVIFA) Calculator

> Calculate future-value annuity factors for end- or beginning-of-period payments of $1.

Page: https://askcalculators.com/calculator/future-value-of-dollar-1-annuity-table-calculator/
Definition: https://askcalculators.com/calculator/future-value-of-dollar-1-annuity-table-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/future-value-of-dollar-1-annuity-table-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/future-value-of-dollar-1-annuity-table-calculator/?ratePerPeriod=5&periods=20&paymentTiming=end

## Inputs
- ratePerPeriod: Interest rate per period; type=percent; required; default=5; min=-99.99; max=1000
- periods: Number of periods; type=number; required; default=20; min=1; max=500
- paymentTiming: Payment timing; type=select; required; default=end; values=end|begin

## Outputs
- fvifa: FV annuity factor; format=number; primary
- futureValue: Future value of $1 payments; format=currency
- totalContributions: Total $1 payments; format=currency

## Formula
FVIFA = [(1+i)^n − 1] ÷ i, multiplied by (1+i) for an annuity due

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.