Retro Game Budget Calculator

How the Calculator Works

The calculator assumes you set aside a fixed amount of money every month for retro game purchases. Over a number of months, this creates a total game budget. That budget is then divided by the effective cost of each game, including any per-game shipping.

Core idea:

• Total budget = monthly budget × number of months
• Cost per game = average game price + shipping per game
• Estimated games = total budget ÷ cost per game, rounded down to a whole game

The result is an estimate of how many full games you can afford if prices and shipping stay around your stated averages.

Formula (With MathML)

Let:

• B = monthly budget
• m = months to plan
• P = average game price
• S = shipping per game
• G = estimated number of games you can buy

The calculator uses this formula:

The floor brackets ⌊ ⌋ mean the result is rounded down to the nearest whole number, since you cannot buy a fraction of a game.

Interpreting Your Results

Once you enter your values and run the calculator, you will see an estimated number of games. Here is how to think about that number:

• Lower game count than expected: Your average price or shipping cost may be high. Consider focusing on cheaper titles, buying locally, or saving for longer.
• Higher game count than expected: Your budget stretches well at current prices. You might choose to upgrade to more complete-in-box or rarer games instead of maximizing quantity.
• Comparing time frames: Doubling the number of months usually doubles your total budget, but price changes or different shipping methods can change the final game count.

Use the results as a planning guide rather than a guarantee. Real-world prices, sales, and condition of games will all influence what you actually pay.

Worked Example

Imagine you want to plan your purchases for the next six months:

• Monthly budget (B): $50
• Months (m): 6
• Average game price (P): $22
• Shipping per game (S): $3

First, calculate your total budget over six months:

Total budget = 50 × 6 = 300 dollars.

Next, find the effective cost per game:

Cost per game = 22 + 3 = 25 dollars.

Now divide:

Estimated games = 300 ÷ 25 = 12.

After rounding down, you can expect to buy 12 games in six months at your current spending level and price assumptions.

If prices drop to an average of $18 with the same $3 shipping, cost per game becomes $21, and you could buy ⌊300 ÷ 21⌋ = 14 games instead. Small price changes can noticeably affect how quickly your collection grows.

Scenario Comparison Table

The table below shows a few example scenarios so you can quickly see how different budgets and prices affect the number of games you might buy.

Use these as rough benchmarks, then plug your own numbers into the calculator to match your actual habits and target platforms.

Tips to Stretch Your Retro Game Budget

Because the calculator is driven by average price and shipping, any strategy that lowers those values increases your potential game count:

• Buy in lots or bundles: Mixed lots from auctions or local sellers often reduce the average price per game.
• Trade duplicates: Swapping with other collectors can upgrade your library without increasing cash outlay.
• Focus on one system at a time: Targeting a single console helps you learn typical prices and spot real bargains.
• Compare shipping options: Combining orders or buying locally can dramatically reduce shipping per game.
• Be flexible on condition: Accepting cart-only copies or minor cosmetic wear can cut the average price.

Assumptions and Limitations

This tool provides a simple estimate and makes several assumptions:

• Game prices and shipping are treated as average values over the whole period. Individual titles may be much cheaper or more expensive.
• Your monthly budget stays constant and is fully available for game purchases.
• The result is rounded down to the nearest whole game; partial games are not counted.
• Costs for consoles, repairs, accessories, storage, and display are not included unless you manually fold them into your average price per game.
• Prices can change due to market trends, sales, or currency shifts, so the output is only an estimate, not a guarantee.

The calculator is intended for hobby planning only and does not constitute financial advice. Always adjust your numbers based on real-world prices in your region and your own comfort level with spending.

Planning the Next Step in Your Collection

Revisit this calculator whenever your income, expenses, or collecting goals change. You can combine it with general saving or hobby budget tools to decide how much you want to allocate to retro games compared with other interests.

By keeping a clear eye on your monthly budget, expected prices, and shipping, you can grow your collection steadily while avoiding impulse purchases that hurt your finances.