Child Pocket Money Compound Calculator
Pocket money invested monthly grows by age 18.
Calculate what children's pocket money invested monthly grows to by age 18. Enter amount and return to see pot at age 18.
What this tool does
Enter monthly pocket money invested, current age, and return. The tool shows the pot at 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.
20/month invested from age 5 to 18 at 7%: 5,475 pot. Starting earlier matters: age 5 to 18 gives 13 years of compounding, age 10 to 18 only 8 years — same 20/month yields 2,750. Teaching investing habits early compounds more than amount.
A worked example
Try the defaults: monthly amount of 20, current age of 5, annual return of 7%. The tool returns 5,066.62. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.
What moves the number most
The result responds to Monthly Amount, Current Age, and Annual Return. The rate and the time horizon usually dominate — compounding means a small change in either reshapes the final figure more than a similar shift in contribution size. Test this by doubling one input at a time.
The formula behind this
Future value of monthly annuity. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.
Spreading the cost
Starting earlier always costs less per month than starting late. That's the main lever this tool surfaces. Whatever the total, dividing it by the months until the event gives a monthly target that's easier to build into a budget.
What this doesn't capture
Life events generate side costs the figure doesn't include: time off work, lost income, travel for others, aftercare. Add 10–15% to the direct number as a buffer; the items you haven't thought of usually fill most of it.
What to calculate alongside this
One figure by itself is fragile. The children annual cost split calculator, the cost of raising a child calculator, and the funeral cost planning calculator cover adjacent ground — the answer to any one of them changes how you read the output from this tool. Worth a few minutes each, honestly.
Child pocket money compound produces a pot figure 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
Future value of monthly annuity.
Frequently Asked Questions
tax-advantaged child savings account wrapper?
Why teach early?
Riskier returns?
Pocket money vs gift?
Related Calculators
Children Annual Cost Split Calculator
Break down the cost of raising a child from birth to 18 into annual and monthly averages. Enter cost estimate and years span for an instant result.
Cost of Raising a Child Calculator
Estimate total cost of raising a child to age 18 from monthly cost estimates. Enter cost 0-4 and cost 5-11 for an instant result.
Funeral Cost Planning Calculator
Calculate monthly savings needed to cover a funeral by a target age. Enter funeral target cost and see the result instantly.
More Modern Life Events Calculators
Modern Life Events
Adoption Cost Calculator
Calculate the full cost of adoption including agency fees, legal costs, medical exams, home study, travel, and post-adoption setup.
Modern Life Events
The Adulting Basics Budget
Build a complete first budget for new adults — covering all the costs of independent living for the first time. Enter rent and see the result instantly.
Modern Life Events
Baby First Year Cost Calculator
Calculate total first-year baby cost combining nursery setup and ongoing expenses. Enter nursery setup one-time and diapers for an instant result.
Modern Life Events
The Back to School Supply Drain
Calculate complete back-to-school shopping costs across clothing, supplies, technology, and fees. Identify bulk-buying and discount savings strategies.
Modern Life Events
Bereavement Financial Impact Calculator
Estimate immediate financial impact after losing a partner's income including income loss, one-off costs, and household savings.
Modern Life Events
The Big Birthday Party Budgeter
Plan and budget milestone birthday celebrations with cost breakdowns for venue, catering, decorations, entertainment, and party favors to prevent overspending.
Explore Other Financial Tools
Money Insights
Financial Life Score Calculator
Score your financial life on a 100-point scale across four key metrics. Enter emergency fund months to see 100-point total score and tier.
Savings
Retirement Income Calculator
Calculate retirement income from portfolio. See year-1, year-30, and cumulative income with inflation. Enter portfolio value and see the result instantly.
Major Purchases
Car Insurance Calculator
Calculate total expected car insurance annual cost including premiums and expected claims. Enter liability premium monthly and see the result instantly.