College Fund Start Age Calculator
Impact of starting a college fund earlier.
Compare college fund savings contributed from birth vs later start to see the compound advantage of early start. Free and runs in your browser.
What this tool does
Enter target value, expected return, and start age (child's age when you begin saving). The tool shows monthly contribution needed to hit target by age 18.
Enter Values
Value is unusually low — please double-check
Formula Used
Spotted something off?
Calculations, display, or translation — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
Starting early is the cheapest way to fund education. A 50,000 target by age 18, at 6% return: starting at birth requires about 129/month; starting at age 10 requires roughly 435/month. The later start costs over 3× more per month for the same end result. Time is the dominant variable in any savings goal.
Quick example
With target value at 18 of 50,000 and annual return of 6% (plus child's current age of 0), the result is 129.08. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.
Which inputs matter most
You enter Target Value at 18, Annual Return, and Child's Current Age. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.
What's happening under the hood
Required monthly contribution formula: FV × r / ((1+r)^n - 1). Assumes monthly compounding and equal contributions. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.
Using this to think, not predict
Financial plans are wrong by month six — new information arrives and reshapes the picture. The point of running projections isn't to be right in ten years; it's to be less wrong in the decision you're making this week.
What this doesn't capture
Real plans get re-run against new information every year or two. The result here is a reasonable direction, not a destination. Treat it as a starting point for thinking, not a commitment to a specific future.
Where to go next
This calculation rarely sits alone in a planning exercise. If you're running these numbers, you'll probably also want the savings goal calculator, the compound interest calculator, and the investment minimum for fi calculator — each one answers a different question in the same territory. Treating them as a set rather than in isolation usually produces a more honest picture.
Required monthly contribution produces an amount based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Required monthly contribution formula: FV × r / ((1+r)^n - 1). Assumes monthly compounding and equal contributions.
References
Frequently Asked Questions
Why does early start matter so much?
What return rate to use?
Should I set the target in today's terms?
Catching up late?
Related Calculators
Savings Goal Calculator
Calculate time needed to reach a savings target with current balance and monthly deposits. Enter contribution and see the result instantly.
Compound Interest Calculator
Calculate compound interest growth on savings and investments with adjustable rates, time periods, and compounding frequency for accurate projections.
Investment Minimum for Financial Independence
Calculate the minimum lump sum to invest today to reach a financial independence number by a target age. Enter fi number and years to fi for an instant result.
More Planning Calculators
Planning
Annual Net Worth Tracker
Track your annual net worth change: this year's total minus last year's, with growth rate and monthly contribution implied.
Planning
Apprenticeship vs University Calculator
Compare lifetime earnings between university degree and apprenticeship route over career. Enter university cost and university years for an instant result.
Planning
Barista FIRE Calculator
Calculate Barista FIRE target for partial financial independence with part-time income. Enter expenses and partial income annual for an instant result.
Planning
Buy vs Lease Car Calculator
Compare the total cost of buying a car outright against leasing across a matched ownership period. Enter buy price to see net cost of each path over the period.
Planning
Care Home Affordability Calculator
Calculate how long savings cover care home costs accounting for other income and inflation. Enter care cost and other income monthly for an instant result.
Planning
Career Break Finances Calculator
Calculate total financial cost of a career break including lost salary, employer match, and expenses during time off. Free and educational.
Explore Other Financial Tools
Budget
Meal Cost Per Plate Calculator
Work out the cost per plate when cooking at home. Enter ingredient cost, portions, and energy cost. Enter energy cost to cook and see the result instantly.
Lifestyle
Car Sharing vs Ownership Calculator
Compare car sharing vs ownership costs. Enter monthly costs and usage hours to see which saves more. Free and runs in your browser.
Savings
Dream Goal Monthly Target Calculator
Calculate the monthly contribution needed to hit a savings goal in a target number of years at a chosen interest rate. Free — no signup.