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Calculate retirement funds

Estimate the amount of money you need to accumulate at retirement and the retirement gap.

Health/LifeVerifiable formulaYou can save and share results.
Calculate net salarySalary after tax and social securityCalculate savings goalsMake a monthly savings plan.Calculate the interest rateThe effect of interest rates on savings.Calculate retirement goalsHow much do you have to save a month to retire?Retirement 2026. Plan for a good retirement.How to plan for retirement.

Plan your retirement with your real numbers.

The tool will calculate both the "expected money" and the "expected money" to see the gaps immediately.

It's a monthly interest rate and inflation-supported plan.

Retirement Funds Calculator

The Retirement Funds Calculator estimates a investment and time value estimate for your scenario from the quantities, rates, period, units and other assumptions requested on the page. Replace the example values with your own retirement funds figures and recalculate after changing an assumption. Use it to compare scenarios, then verify any current rate or fee before acting.

Fill in your age, current savings, monthly savings, and the yield/inflation assumptions. The system will conclude whether you're likely to have enough money at retirement, with the differences that need to be fixed.

Sources used to define the hypothesis

  • Bank of Thailand: Long-term financial planning and the effect of inflation on purchasing power
  • Bank of Thailand: Medium-term inflation target framework (used as a basis for assumptions)
BOT: Financial planning.BOT: Inflation range 1-3%

The calculation method used by this tool

This tool uses the main Time Value of Money By simulating the monthly 2 range:

  1. Pre-retirement accumulation period: Current savings and monthly savings grow with pre-retirement returns.
  2. Post-retirement spending period: Calculate the cash needed from monthly expenses adjusted for inflation and deduct it at retirement from the post-retirement benefits.

The way to make the hypothesis realistic.

  • The pre-retirement return rate should reflect your actual portfolio (do not set it too high).
  • After retirement, you should use a lower return rate if your portfolio is low volatility.
  • Inflation is a major variable for future purchasing power. It should be tested in many cases.
  • Review the plan at least 1 time per year when income or expenses change.

Sample dataset identical to the starting value in the page

Age 35 Years Retirement 60 Years (Remaining 25 Years) Current Savings 500,000 baht Additional Savings 16,000 baht/Month Pre-Retirement Return 6% Post-Retirement Return 3.5% Inflation 2% and Needs 30,000 baht/Month (Value of Money Today) You will see that you will need millions of dollars baht when you retire. A small increase in monthly savings can reduce the gap significantly.

Learn more from our article.

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Retirement 2026. Plan for a good retirement.How to plan for retirement.
Check before using results

Summary before deciding

This calculation result is suitable for preliminary planning. Actual figures should be checked from documents or official sources before making important decisions.

  • The calculation is based on the information you enter on this page.
  • Special cases may require additional information.
  • It is recommended to record or compare the results with the related tools below.
Calculation method and references
Select continue from this result.
Calculate net salarySalary after tax and social securityCalculate savings goalsMake a monthly savings plan.Calculate the interest rateThe effect of interest rates on savings.Calculate retirement goalsHow much do you have to save a month to retire?

Related manuals and tools

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Frequently asked questions

When should you start calculating your retirement?
Start as soon as you have income. The sooner you start, the more interest you'll be able to pay off, and the less you'll have to save every month.
If inflation rises, how will the calculation change?
The money you need to have when you retire will be higher because future expenses will be more expensive, so realistic inflation is very important.
Should the pre-retirement and post-retirement returns be the same?
Not necessary. Retirement tends to be less risk-oriented, so expect a lower return rate than the savings period.
If it turns out that you don't have enough money, what should you fix first?
Start with increasing monthly savings, moving retirement age, or revising target spending, experimenting variable by variable to see the effect.
Disclaimer: The results are estimates based on user-filled assumptions. They are not personal investment advice. They should be reviewed with actual financial plans and official documents before decisions are made.

English calculator guide

How to use the Retirement Funds Calculator

Use this page to test a specific retirement funds scenario. Enter your own values in the calculator above, review the units beside each field, and recalculate after changing an assumption. The result updates the retirement funds estimate instead of relying on a generic example.

  1. Build a baseline retirement funds case with figures that match your situation.
  2. Run a second retirement funds case after changing the rate, period, quantity or other key assumption.
  3. Record the difference between the two retirement funds results and the input responsible for it.

Inputs for the retirement funds estimate

For this retirement funds calculation, check the quantities, rates, period, units and other assumptions requested on the page. The result is designed to show a investment and time value estimate for your scenario, not a guaranteed provider price or official decision.

How the retirement funds result is calculated

The calculator projects value over time from the entered amount, rate, period and contribution assumptions. Reusing the same retirement funds inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.

Checks for a retirement funds decision

Confirm any current rate, threshold or provider rule that could change the final amount. For retirement funds, This result is for personal tracking and general education. It is not a diagnosis or treatment recommendation; discuss unusual or concerning results with a qualified health professional. Check the important inputs and any current provider or authority rules before using the result for a decision.

Language QA
Terminology, numeric values and calculator controls checked
Calculator scope
Investment and time value
Last English review
26 July 2026

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