Irregular Pay Raise Calculator
Account for dated salary changes.
Irregular Pay Raise Calculator: Scenario Inputs
Annual percentage rate or benchmark index change.
Inflation & Purchasing Power Analysis
Over 3 years at 3.5% inflation, a $75,000 salary requires $83,154 to retain equal purchasing power. Without matching raises, your real compensation experiences an effective reduction of $7,355 (-9.81%).
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How Irregular Pay Raise Calculator Works?
The Irregular Pay Raise Calculator works by annualizing each raise over the months since the previous raise.
Enter raise dates and sizes
Type each raise date and percentage.
Measure the intervals
The calculator counts months between consecutive raises.
Annualize each raise
The calculator converts each raise into a 12-month equivalent rate.
Compare with inflation
Each raise is set against inflation over the same interval.
Irregular Pay Raise Calculator Formula
The Irregular Pay Raise formula raises one plus each raise to the power of 12 divided by the interval in months.
Annualized = (1 + R)12 / M − 1
Real = (1 + R) ÷ (1 + πinterval) − 1
Variables
- R
- Raise size
- M
- Months since the previous raise
- πinterval
- Inflation over the same months
Worked example
A 5% raise after 14 months annualizes to 4.27%. Inflation of 4.2% over those 14 months leaves a real result of +0.77%.
Irregular Pay Raise Calculator Conversion Table
This table annualizes 4 irregular raises and compares each with example inflation for its interval.
| Raise | Months since prior raise | Raise size | Annualized raise | Inflation over interval | Real result |
|---|---|---|---|---|---|
| Raise 1 | 14 | 5.0% | 4.27% | 4.2% | +0.77% |
| Raise 2 | 9 | 3.0% | 4.02% | 2.8% | +0.19% |
| Raise 3 | 20 | 7.0% | 4.14% | 6.1% | +0.85% |
| Raise 4 | 11 | 3.5% | 3.82% | 3.0% | +0.49% |
What is Irregular Pay Raise Calculator?
The Irregular Pay Raise Calculator is a tool that converts raises given at uneven intervals into annualized rates so each raise can be compared with inflation fairly. A 5% raise after 14 months is weaker than a 5% raise after 12 months.
The calculator lines up each raise with inflation over its own interval and reports a real result per interval.
What are the uses of Irregular Pay Raise Calculator?
There are 4 main uses of the Irregular Pay Raise Calculator.
Compare uneven raises
Put raises after 9, 14 and 20 months on one yearly basis.
Expose stretched cycles
Show how longer gaps between raises lower the yearly rate.
Check each raise
Test every raise against inflation for its own interval.
Audit pay practices
HR teams find staff whose raise intervals drift past 12 months.
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