5/1 ARM Calculator
Calculate your 5/1 Adjustable Rate Mortgage payments. Compare fixed period vs adjusted payments and understand your potential monthly costs.
Understanding 5/1 ARM Mortgages
A 5/1 ARM (Adjustable-Rate Mortgage) offers a fixed interest rate for the first 5 years, after which the rate adjusts annually based on market conditions. This provides a longer period of stability compared to 3/1 ARM while still offering lower initial rates than fixed-rate mortgages.
How 5/1 ARM Works
- Years 1-5: Fixed interest rate (initial rate)
- Year 6+: Rate adjusts annually based on index + margin
- Rate caps protect against extreme increases
- More stability than 3/1 ARM
Understanding Rate Caps
- Initial Cap: Maximum rate increase at first adjustment
- Periodic Cap: Maximum annual rate change
- Lifetime Cap: Maximum total increase over loan life
- Common structure: 2/2/5 or 5/2/5
When to Consider 5/1 ARM
- Planning to sell or refinance within 5-7 years
- Want lower initial payments than fixed-rate
- Expect income growth before adjustment
- Believe rates may decrease in the future
5/1 ARM vs 3/1 ARM
- 5/1 ARM: 5 years fixed, longer stability
- 3/1 ARM: 3 years fixed, lower initial rate
- 5/1 ARM better for medium-term ownership
- 3/1 ARM better for short-term ownership
5/1 ARM vs Fixed-Rate Mortgage
| Feature | 5/1 ARM | 30-Year Fixed |
|---|---|---|
| Initial Rate | Lower than fixed | Higher than ARM |
| Rate Stability | 5 years fixed, then variable | Fixed for entire term |
| Payment Predictability | Predictable for 5 years | Fully predictable |
| Best For | 5-7 year ownership | Long-term ownership |
| Risk Level | Moderate | Low |