Calculateur de College Savings (529)
Project college savings growth from monthly contributions and years until enrollment.
Formula and method
This calculator computes Projected balance directly in your browser without sending data to an external server.
Mathematical formula
- Projected balance:
(() => { const r=rate ÷ 1200, n=years × 12, p=1+r^(n); return r===0 ? currentSavings+monthlyContribution × n : (Number.isFinite(p) ? currentSavings × p + monthlyContribution × ((p-1) ÷ r) : NaN); })()
Variables and parameters
- Current savings (currentSavings): default value 5000.
- Monthly contribution (monthlyContribution): default value 200.
- Annual return (rate): default value 6 %.
- Years until enrollment (years): default value 15.
Some formulas are undefined for certain input combinations (such as division by zero or logarithms of non-positive numbers). In those cases the live tool displays an alert instead of NaN.
Embed this tool
Paste this snippet into your own site or blog post to embed a live, working copy of this tool. It links back to the full page on SpecWhale.
Frequently asked questions
What equation and variables does College Savings (529) Calculator use?
College Savings (529) Calculator evaluates outputs such as <strong>Projected balance</strong> based on inputs including Current savings, Monthly contribution, Annual return, Years until enrollment. Check the Mathematical Method section for the explicit formula.
How can I compare different financial scenarios using College Savings (529) Calculator?
You can click the "Add to Compare" button after computing your scenario to pin it to your temporary side-by-side Compare Workbench, allowing you to evaluate loan, rate, or interest differences.
What happens if I enter invalid or zero values into College Savings (529) Calculator?
If an input combination is mathematically undefined (such as division by zero or negative square roots), SpecWhale alerts you gracefully rather than returning invalid NaN outputs.
Are my calculations in College Savings (529) Calculator saved or private?
All calculations are 100% private and run locally in your Web browser. Your numbers are never uploaded to any server, but can be saved locally to your device or exported as CSV/JSON.
Is College Savings (529) Calculator free to use?
Yes. College Savings (529) Calculator is completely free, has no usage limit, and does not require an account, email, or API key.
Does College Savings (529) Calculator store or upload my data?
No. College Savings (529) Calculator calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.
How accurate is College Savings (529) Calculator?
College Savings (529) Calculator uses a standard formula (see the Method section above for the exact expression). For high-stakes financial, medical, or legal decisions, confirm the result with a professional or an authoritative source before relying on it.
Can I embed College Savings (529) Calculator on my own website?
Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of College Savings (529) Calculator to your own blog post or page.