Salary Growth Simulator: How Much Will You Earn in 10 Years?
What you'll learn in this article:
- What average salary growth rates look like — and what the data actually means
- How to calculate your own annual salary growth rate
- Salary projections by growth rate over 5, 10, and 20 years
- When a job change beats waiting for raises — with a side-by-side comparison
Do you know your annual salary growth rate?
"I think I get a raise every year" is not a number. A 1% difference in annual salary growth can mean a gap of over $100,000 in lifetime earnings over 20 years. The compounding is slow — until it isn't.
Start here: enter your current salary and growth rate into the Timefair Salary Growth Simulator to see exactly where you'll be in 10 or 20 years.
What Is the Average Salary Growth Rate?
In Japan, the Ministry of Health, Labour and Welfare's 2023 Wage Survey reported an average wage increase of approximately 2.0% (¥6,056/month per person).
In the US, the Bureau of Labor Statistics (BLS) reports that median weekly earnings grew by approximately 4.5% in 2023, though this varies significantly by industry and role. For knowledge workers, Mercer's 2024 Total Remuneration Survey puts the average base salary increase budget at 3.9%.
What these numbers don't show:
- Inflation adjustment: With inflation at 3.2% (Japan) and 4.1% (US) in 2023, a 2% raise is a real-terms pay cut. A 4% raise with 4% inflation is effectively zero growth.
- Company size gap: Large-company employees typically see 2–3x the raise rate of small-company employees.
Base Pay Increases vs. Merit Increases
Salary growth comes from two distinct mechanisms — and conflating them leads to surprises.
Merit increases (performance raises)
Your raise is based on your performance review. High performers get more; average performers get less. The pool is finite and competitive.
Base pay increases (cost-of-living / general increases)
The entire salary scale moves up. Everyone gets a raise regardless of performance. This is what gets negotiated in collective bargaining and what executives announce in earnings calls.
Why this matters: In years when companies announce a base pay increase but cut merit budgets, average performers may see the same dollar amount as high performers. Knowing which type drives your raise helps you calibrate expectations — and negotiation strategy.
How to Calculate Your Salary Growth Rate
Salary Growth Rate (%) = (This Year's Salary − Last Year's Salary) ÷ Last Year's Salary × 100
Example: $85,000 → $87,500
($87,500 − $85,000) ÷ $85,000 × 100 = 2.94%
You can find this in your offer letters, pay stubs, or W-2 forms (Box 1). Enter the result into the Timefair Salary Growth Simulator to project your income over any time horizon.
Salary Projections by Growth Rate
Starting from $80,000 annual salary:
| Growth Rate | After 5 Years | After 10 Years | After 20 Years |
|---|---|---|---|
| 1.0% | $83,900 | $88,300 | $97,600 |
| 2.0% | $88,300 | $97,500 | $118,900 |
| 3.0% | $92,700 | $107,500 | $144,400 |
| 5.0% | $102,100 | $130,300 | $212,300 |
The gap between 1% and 3% over 20 years: nearly $47,000 in annual salary. Compounded over a career, the difference in total earnings is substantial.
Use the Timefair Salary Growth Simulator to run your own numbers.
Job Change vs. Waiting for Raises
According to Pew Research Center (2022), workers who changed jobs saw a median salary increase of +9.7%, versus +5.9% for those who stayed. In strong job markets, job changes have historically delivered 10–20%+ salary bumps.
At a 2% annual growth rate, earning a 15% raise takes approximately 7 years. A single strategic job move can compress that into one transition.
When to seriously consider a job change:
- Your annual raise is below 2% and market rates for your role are 15%+ higher
- Your projected salary in 10 years falls below current market rate for your role
- The salary growth simulator shows your income trailing inflation over the next decade
The Timefair Salary Growth Simulator lets you enter a "post-job-change" salary to compare the two paths side by side.
If you want to check whether your total hourly compensation is competitive (accounting for overtime), use the Hourly Rate Calculator. Knowing your effective hourly rate, not just your headline salary, often changes the picture.
If you're in Japan and want to verify your overtime pay is being calculated correctly, the Overtime Pay Calculator can help you confirm whether you're receiving what you're owed.
Final Thoughts
The average annual salary growth rate is 2–4% depending on country, company size, and industry. Inflation erodes a significant portion of that — which means even "good" raises can feel stagnant.
The Timefair free Salary Growth Simulator makes it easy to see your long-term trajectory and compare it directly with what a job change could deliver. Put in your numbers — then decide whether to stay, negotiate, or move.
FAQ
Q: How do I calculate my salary growth rate?
A: Use the formula: (This Year's Salary − Last Year's Salary) ÷ Last Year's Salary × 100. For example, if you went from $85,000 to $87,500, your growth rate is 2.94%. Enter this into the Timefair Salary Growth Simulator to project your income over 5, 10, or 20 years.
Q: What's the difference between a base pay increase and a merit raise?
A: A base pay increase moves the entire salary scale up — everyone gets it. A merit raise is tied to your individual performance review and is competitive within a fixed budget. Both show up as "raises," but they have different drivers and different implications for negotiation.
Q: Is a 2% annual raise good or bad?
A: It depends on inflation. In a 3–4% inflation environment, a 2% raise is a real-terms pay cut. For your salary to grow in real terms, your raise needs to exceed the inflation rate. Aim for 3%+ to stay ahead. Use the simulator to see what different scenarios look like over 10+ years.
Q: How can I negotiate a higher raise?
A: Research market rates for your role using sites like LinkedIn Salary, Glassdoor, or Levels.fyi. Calculate the gap between your current salary and market rate, and bring that number — not a vague feeling — to your manager. Specific data ("the median for my role in this city is $X, and I'm at $Y") is more actionable than a general request for more money.
Q: Is it better to job-hop for raises or wait for internal promotions?
A: On average, job changes deliver 10–20% salary increases in a single move, while annual raises average 2–4%. If internal raises are below 2% and external opportunities offer 15%+ more, a job change compresses years of incremental growth into one transition. Use the Salary Growth Simulator's job-change comparison feature to see the long-term difference in your specific case.
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