Skip to main content
Financial planning desk with calculator, documents and money for calculating taxes or income.Tax, income and finance
KamnuanlekOS

Calculate Sinking Fund

Calculate monthly savings for future goals, cars, travel, furniture, over time.

Budget/CashVerifiable formulaYou can save and share results.

Calculate Sinking Fund — monthly savings for the set goal

Formula: Savings/ month = (Target - Current Savings) ÷ Number of months

Suitable for: Travel Car Furniture Tuition

Sinking Fund Calculator

The Sinking Fund Calculator estimates a date and calendar estimate for your scenario from the quantities, rates, period, units and other assumptions requested on the page. Replace the example values with your own sinking fund figures and recalculate after changing an assumption. Use it to compare scenarios, then verify any current rate or fee before acting.

Enter the desired money goal, period (months), and current savings to see how much you need to save per month.

Formulas used

  • Amount to be saved = target - current savings
  • Monthly savings required = amount still to be saved ÷ number of months
  • Difference = Savings per month desired - Actual savings (if savings are less, extend the period)

Related Links

Frequently asked questions

What is the Sinking Fund?
A sinking fund is a savings account that's built up for large, known-in advance expenses, like travel, holiday gifts, car repairs, furniture, different from an emergency fund that's built up for unexpected events.
How many Sinking Funds should there be?
It is recommended to have several funds according to the targets, such as travel funds, gift funds, car repair funds, maintenance funds, each fund savings according to the period and amount required, separate savings accounts for each target makes it easier to track.
How does the Sinking Fund differ from a normal savings account?
While general savings tend to have no clear goals, the Sinking Fund has specific targets for when to spend and how much, making planning and tracking more accurate and reducing the chance of spending before reaching the goal.
What if I don't save enough every month?
There are two options: (1) extend the waiting period so that the monthly number decreases, or (2) reduce the target to be reasonable for the revenue, such as switching from foreign tours to domestic tourism instead.
Disclaimer: The results are estimates, not including interest on savings accounts. The actual figures may be slightly lower if interest is paid on deposits.

English calculator guide

How to use the Sinking Fund Calculator

Use this page to test a specific sinking fund 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 sinking fund estimate instead of relying on a generic example.

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

Inputs for the sinking fund estimate

For this sinking fund calculation, check the quantities, rates, period, units and other assumptions requested on the page. The result is designed to show a date and calendar estimate for your scenario, not a guaranteed provider price or official decision.

How the sinking fund result is calculated

The calculator compares the selected dates using calendar-based intervals and the date rules shown on the page. Reusing the same sinking fund inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.

Checks for a sinking fund decision

Confirm any current rate, threshold or provider rule that could change the final amount. For sinking fund, Use the result as a planning estimate and confirm any rate, rule or threshold that may have changed before acting. 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
Date and calendar
Last English review
26 July 2026

Responsibility for content

Creator and reviewer

Creator
Kamnuanlek editorial team
reviewer
Kamnuanlek recipe and resource review team
Check out the latest accountability system.

Review formula structure, test cases, data sources, effective dates, and risk language accordingly.How to check our · There is no claim that an outside professional reviewed it. Unless the page directly states the name and qualifications. This content is therefore not individual advice.

Found an error or information has been changed? When contacting, please include the URL and a verifiable reference.Learn how to report and save edits. · Contact the team