Rate Impact Calculator
Quick Answer
On a $400,000 mortgage, a 0.25% rate increase adds roughly $55-65/month to your payment and $15,000-18,000 in total interest over 25 years. Understanding rate sensitivity helps you decide between fixed and variable, and when to lock in.
Calculator
| Rate Change | New Rate | Monthly Payment | Payment Change | Total Interest Diff |
|---|---|---|---|---|
| -1.00% | 3.99% | $2,101.91 | -$222.23 | -$66,669 |
| -0.75% | 4.24% | $2,156.44 | -$167.70 | -$50,310 |
| -0.50% | 4.49% | $2,211.67 | -$112.47 | -$33,742 |
| -0.25% | 4.74% | $2,267.57 | -$56.57 | -$16,971 |
| Current | 4.99% | $2,324.14 | $0.00 | $0 |
| +0.25% | 5.24% | $2,381.37 | +$57.23 | +$17,168 |
| +0.50% | 5.49% | $2,439.24 | +$115.10 | +$34,528 |
| +0.75% | 5.74% | $2,497.74 | +$173.60 | +$52,078 |
| +1.00% | 5.99% | $2,556.85 | +$232.71 | +$69,812 |
💡 What This Means for You
On a $400,000 mortgage, every 0.25% rate change costs roughly $57.23/month — or $17,168 over the life of the mortgage.
How It Works
This tool shows how sensitive your mortgage payment is to rate changes. Variable rate holders face this impact directly when the Bank of Canada adjusts rates. Fixed rate holders face it at renewal.
Real Calgary Scenarios
Frequently Asked Questions
How much does a 0.25% rate change cost?
On a $400,000 mortgage with 25-year amortization, each 0.25% change affects your monthly payment by roughly $55-65 and total interest by $15,000-18,000.
Should I choose fixed or variable?
Historically, variable rates have saved money over time. But fixed gives payment certainty. If you can handle potential payment increases, variable may save money long-term.
Want exact numbers based on your rate impact calculator results?
Speak with a Calgary mortgage expert — no obligation.
Get My Personalized Mortgage Plan