SprueVia Japan

Calculator

Model-kit shopping budget

Set a spending limit before choosing a detour. Use a quote for the kit you want and a separate travel allowance so the shopping trip does not quietly consume the kit budget.

Find the maximum number of kits at one price, or check a basket of different kits and quantities. Both modes keep travel and reserved costs inside your budget. Use the fieldbook for condition and luggage checks.

Calculate your limit

The example button only fills an empty plan. It keeps entries in both modes. Example amounts are not live quotes.

Enter known amounts in whole yen. Use 0 only for a cost that does not apply; a blank means unknown and cannot be calculated. Fractional yen are not rounded automatically. No prices or stock are fetched.

Switching modes keeps all your entries in this open page. Only the selected mode is calculated.

Same-price kit limit

This amount stays inside your total budget, but is not available for kits. Enter 0 if no reserve is needed.

Your result will appear here.

Calculations stay in this page. Inputs are not saved or sent by this tool; reloading clears them. Back may keep the open page, but you must calculate again after returning.

Worked examples

Illustrative same-price example: a ¥12,000 budget, ¥1,000 transport, ¥500 reserve and ¥3,000 per kit leaves ¥10,500 for kits: at most 3 kits, with ¥2,000 left after transport and kits. That includes the ¥500 reserve, leaving ¥1,500 beyond the reserve.

Illustrative basket example: 2 kits at ¥2,500 and 1 at ¥4,000 cost ¥9,000 in total. With the same ¥12,000 budget, ¥1,000 transport and ¥500 reserve, that leaves ¥1,500 above the reserve. These fictional amounts do not establish stock, prices or luggage fit.

Before you buy

Check these items as you plan, then use your browser's print option to keep a copy. Checkmarks are not saved.

Printing validates your inputs and recalculates the result first. You can then save a PDF using your browser’s print dialog.

Choose a purposeful stop

Write down your target kit and a fallback before adding a store to the route. A branch with an appealing list of products is not necessarily worth a special journey if none matches your target.

Budget for the whole detour

Use only the additional transport caused by the shopping stop. Add packing or other costs you want to reserve. Use the same-price mode for a maximum-count limit. Use the basket mode to check the prices and quantities you have chosen; it flags any shortfall after travel and reserve. It does not choose which kits to buy or establish availability.

Plan for unavailable stock

Store listings are evidence to recheck, not reservations. Decide in advance whether you would still enjoy the stop without the target item. If the answer is no, seek a fresh confirmation before making the journey.

Read next

TAKE IT TO THE SHOP

Model-kit shopping fieldbook

Compare two options, show Japanese questions and keep a personal checklist.

Open your fieldbook →