Vooka/Calculator
— rank in, sales out —

Sales Calculator

Punch in a sales rank, choose a marketplace, and see the daily-sales estimate that backs it. Then cross-check your royalty margin below. Useful before you outbid a campaign or pick a niche to enter.

— rank in, sales out —

BSR → Sales Estimator

Punch in a sales rank and see the daily-sales estimate that backs it. Useful before you outbid a campaign or pick a niche to enter.placeholder data · BSR API coming soon

Inputs
Sales ranklower = more sales
#
#1#10k#100k#1M
Marketplace
Category
Price · royaltyused for revenue calc

Revenue estimates use the royalty calc below.

at this rank, expect…
160sales / day

A book at #28,000 on amazon.com Books typically moves 160 copies a day. At $12.99 and 35% royalty that's ~$727.90/day in net royalties — assuming the rank holds steady.

Per month4.8ksales~$21837.14 royalties
Per year58.4ksales~$265685.19 royalties
Royalty / unit$4.5535% · KDP

How it compares

Estimated daily sales at neighboring ranks · amazon.com Books
#1,0001000 /day
#5,000413 /day
#10,000282 /day
#28,000 ← yours160 /day
#50,000116 /day
#100,00079 /day
#500,00033 /day
Inputs
Format
eBook
Paperback
Hardcover
Marketplace
Page Count1 – 1000
12505007501000
Trim Sizeinches
Ink Type
B&W
Standard Color
Premium Color
List PriceUSD

eBook: $2.99–$9.99 for 70% royalty · Over $9.99 or under $2.99: 35%

at this price, expect…

Calculating…

Read the numbers carefully

Volatile. A BSR is a 7-day decay average. The number above is a steady-state estimate, not what you sold yesterday.
Curve is steep. Moving from #28k to #10k roughly doubles daily sales. Below #5k the curve gets brutal.
Marketplace matters. UK Books is roughly 18% of US volume at the same rank. DE about 12%. Apply the ratio in your head.
Category matters more than rank. "BSR" in a niche category isn't the same as overall Books BSR. Kindle-only ranks lag print.
eBook 70% royalty only applies $2.99–$9.99 on US, UK, and DE. All other prices drop to 35%. Paperback & Hardcover earn 60% minus printing cost.
Break-even is your floor. The minimum list price KDP allows. Below it, you earn $0 and KDP keeps the difference.