Calculator inputs
Example data table
| Item | Example value |
|---|---|
| Current savings | $15,000.00 |
| One-time contribution | $5,000.00 |
| Monthly contribution | $450.00 |
| Annual extra contribution | $2,500.00 |
| Years until college | 10 |
| College years | 4 |
| Annual return rate | 7.00% |
| Tuition inflation rate | 5.00% |
Formula used
Effective annual return: (1 + r / n)n - 1
Effective monthly return: (1 + effective annual return)1/12 - 1
Monthly savings growth: each month adds the chosen contribution, then applies monthly investment growth based on the selected compounding frequency.
Contribution growth: monthly contribution × (1 + growth rate)year - 1
Future first-year college cost: current annual cost × (1 + tuition inflation)years until college
Total program cost: sum of each future college year cost, inflated separately for every year in the program.
Funding gap: projected total program cost - projected college fund
How to use this calculator
- Enter the money already saved for college.
- Add any one-time deposit planned now.
- Type the monthly contribution and any yearly extra deposit.
- Set how many years remain before college starts.
- Choose how many years the student will attend.
- Enter expected portfolio return and tuition inflation.
- Set contribution growth if you plan to raise savings later.
- Choose compounding frequency and contribution timing.
- Click Calculate growth to see the fund, costs, chart, and gap.
- Use the CSV and PDF buttons to export the yearly projection.
Frequently asked questions
1. What does this calculator estimate?
It estimates how a college savings fund may grow before enrollment. It also projects future tuition costs, compares savings against those costs, and shows a likely funding gap or surplus.
2. Why is tuition inflation included?
Tuition usually rises over time. Adding tuition inflation helps you compare your future savings with future education costs instead of today’s prices, giving a more realistic planning view.
3. What is contribution growth rate?
Contribution growth rate increases the monthly savings amount once each year. It is useful when you expect salary growth or plan to raise college contributions gradually.
4. What is the difference between beginning and end timing?
Beginning timing adds the monthly contribution before monthly growth is applied. End timing adds it afterward. Beginning timing usually produces a slightly higher future balance.
5. Does the calculator include all college years?
Yes. It inflates the annual college cost for each year in the program, then adds those future amounts together to estimate the total cost of attendance.
6. Why is the required monthly saving different from my input?
Your input shows what your current plan may achieve. Required monthly saving estimates the monthly amount needed to reach the projected future education cost under the same assumptions.
7. Can negative returns or low growth be modeled?
Yes. You can test conservative return assumptions and different inflation rates. Reviewing lower-return cases can help build a safer college funding strategy.
8. Are the results guaranteed?
No. Results are estimates based on the assumptions you enter. Actual investment returns, tuition costs, timing, taxes, and fees can change the final outcome.