An interest rate that changes according to the underlying or benchmark interest rate index, such as Treasuries or the prime rate.
Related information about variable interest rate:
- Variable Interest Rate Definition | Investopedia
An interest rate on a loan or security that fluctuates over time, because it is based   on an underlying benchmark interest rate or index that changes periodically.
  
- What is a Variable Interest Rate
A variable interest rate is one that changes based on another interest rate. It's   important to know whether you have a variable rate because it affects your ...
  
- Variable Interest Rate
May 25, 2011 ... What is a variable interest rate? In this quick guide I explain the variable interest   rate and how it applies to your personal finances.
  
- Adjustable-rate mortgage - Wikipedia, the free encyclopedia
... concluded that 50–60% of all Adjustable Rate Mortgages in the United States   contain an error regarding the variable interest rate charged to the homeowner.
  
- Variable Interest Rate: Definition from Answers.com
interest rate on a loan that rises and falls based on the movement of an   underlying index of interest rates.
  
- Variable interest rate - Credit Card Terms and Glossary
Variable interest rate definition: With variable-rate cards your APR (annual   percentage rate) can change. Usually the rate is tied ...
  
- What is variable interest rate? definition and meaning
Definition of variable interest rate: Interest rate that fluctuates over the term of a   loan on the basis of changes in an index that reflects changes in the market rates ...
  
- How Do I Calculate Interest on a Variable-Rate Home Equity Loan ...
There are exceptions, though, when you can choose a variable interest rate   alternative. Variable interest rates are a combination consisting of an unchanging ...