About this calculator
This calculator is for education only and does not constitute investment advice. A gold savings plan buys the same dollar amount of gold every month, so a low price buys more grams and a high price buys fewer — the averaging effect is the whole point of the plan.
The default $128.61 per gram is the spot price as of 2026-10-27 (about $4,000 per troy ounce), not a live quote: this page fetches no market data, so enter the current price before trusting any figure. The price path after year 1 is your assumed growth rate, not a forecast — gold has had long flat decades as well as fast runs, and the model shows both directions if you set growth to zero or negative.
How to use it
- Enter the monthly amount you plan to spend on gold.
- Enter the current gold price per gram (the default is only an example — replace it).
- Enter the assumed annual price growth and the number of years.
- Read grams accumulated and final value; the average cost per gram shows what dollar-cost averaging actually paid.
The formula
Each year's purchase is the annual amount divided by that year's assumed price, so grams bought fall as the price rises — year 1 at $128.61 buys 18.66 grams for $2,400, while year 10 at $199.52 buys only 12.03 grams for the same money. The holding is valued at the current year's price, and the average cost is total invested divided by total grams. Dealer premiums over spot, storage fees and taxes are excluded: real purchases cost more than spot, so real grams are fewer.
Worked example
$200 a month for 10 years, starting at $128.61 per gram (as of 2026-10-27) growing 5% a year: year 1 buys 18.66 grams; by year 10 the price is $199.52 per gram and the plan holds 151.30 grams worth $30,186.94. You invested $24,000, so the gain is $6,186.94 at an average cost of $158.62 per gram — above the starting price, because later purchases cost more.
Sources: Grams = monthly amount × 12 / price per gram; price path from the entered current price grown at the assumed annual rate. 1 troy ounce = 31.1035 grams. No live price feed; dealer premiums, storage and taxes excluded. Last updated: October 2026.
Frequently asked questions
Is the default $128.61 per gram the current price?
No — it is the spot price as of 2026-10-27, not a live quote. This page has no live price feed and never fetches market data. Check a current quote, enter it, and the whole table recomputes.
Grams or ounces?
The table uses grams. One troy ounce — the unit gold is usually quoted in — is 31.1035 grams, so $128.61 per gram is about $4,000 per troy ounce. If your dealer quotes per ounce, divide by 31.1035 before entering.
Why does the average cost end above the starting price?
Because the assumed price rises every year, later purchases cost more per gram than early ones. Dollar-cost averaging smooths the price you pay; it does not lock in the starting price.
What is left out?
Dealer premiums over the spot price, storage or vault fees, bid-ask spreads on selling, and any taxes. All four reduce the real result, so treat the output as a spot-price illustration, not a dealer quote.
What formula does this gold savings plan calculator use?
Grams in year t = (monthly × 12) / price(t); price(t) = current price × (1 + g)ᵗ⁻¹; value(t) = total grams × price(t) Each year's purchase is the annual amount divided by that year's assumed price, so grams bought fall as the price rises — year 1 at $128.61 buys 18.66 grams for $2,400, while year 10 at $199.52 buys only 12.03 grams for the same money. The holding is valued at the current year's price, and the average cost is total invested divided by total grams. Dealer premiums over spot, storage fees and taxes are excluded: real purchases cost more than spot, so real grams are fewer. The worked example on this page applies the formula step by step with real numbers, so you can verify the result by hand.