SalesCircles - Top of the Circle
SalesCircles.org provides tools for online and offline business. We strive to create the most useful widgets for all industries and small business startups.
Now more than ever people need help with little things to help make them successful. SalesCircles is here to help with small challenges that come with pricing items and services. We are taking away all of the math frustration when it comes to totaling cost of goods and cost of services.
SalesCircles.org does not operate like an app. That means none of our tools will take up space in your cell phone. You will not get any notifications to update. You do not need email verification. Our focus is no nonsense, down to business. You are welcome to save a link to your favorite calculator to your cell phone and it will show just like an app without taking up storage space on your device.
Current Available Online Tools
eBay Fee Calculator
Stop guessing your take-home pay. We factor in Category Fees, the $0.40 per-order fee, and Promoted Listings.
Open CalculatorPoshmark Fee Calculator
Poshmark takes a flat 20% (or $2.95 under $15). See exactly what you'll clear since the buyer handles shipping.
Open CalculatorAmazon Fee Calculator
Estimate your minimum listing price and profit after Amazon referral and variable closing fees.
Open CalculatorEtsy Fee Calculator
Etsy fees stack up! Calculate profit after the $0.20 listing fee, 6.5% transaction fee, and processing costs.
Open CalculatorMercari Fee Calculator
Updated for 2026: Calculate your margins now that the 10% seller commission has returned to the platform.
Open CalculatorDepop Fee Calculator
Maximize your "Depoponomics." Calculate profit with 0% marketplace fees and only payment processing costs.
Open Calculatorđź’ˇ Pro Tip: The best platform often depends on item weight! Heavy items (over 2lbs) often net more profit on Poshmark due to their flat-rate shipping, while lightweight items usually win on eBay. Compare both above to find your best margin!
Online Business Extras
Find low cost computer peripherals at DH Gate:
DHgate Super Deals and Free Shipping, Up to 50% OFFCurrent Available Offline Tools
Instant Invoice Generator
Professionalism on the go. Generate a PDF receipt or invoice right from your phone at the job site. No account, no fees, no data tracking.
Open Invoice GeneratorElectrical Job Calculator
Standardize your bidding. Quickly total wire runs, box counts, and devices, then add your labor rate for a professional estimate.
Open Electrical CalculatorPlumbing Job Calculator
From rough-in to trim-out. Keep your material lists organized and ensure you're covering your overhead on every fixture install.
Open Plumbing Calculator🛠️ Trade Tip: Estimates are better when they're instant. Using these tools at the job site allows you to hand a customer a quote before you even leave their driveway—increasing your "win rate" on new jobs.
Offline Business Extras
Magnets, Signs and Banners up to 40% Off:
Up to 40% Off at Signs On The CheapCurrent Available Lifestyle Tools
Best Buy Calculator
Any time you are at a store with options you can use this Best Buy Calculator to help determine which item is best. Compare weight and price quickly for the best deal at any grocery or convenience store. Find out is the largest size really is the best deal!
Open Best Buy CalculatorToilet Paper Calculator
I'm hoping you, like me, have an issue calculating which toilet paper brand and package size is the best deal. Avoid spending 30 minutes trying to figure it out. Use this Toilet Paper Calculator. Punch in the price and the length and your on your way!
Toilet Paper CalculatorRoad Trip Gas Calculator
A global road trip calculator. The formula allows you to choose vehicle types as well as distance measurements and global currencies. This road trip calculator, when used properly, can save you money on car rental while traveling.
Open Road Trip CalculatorFAQ
What Fee Calculators Do You Offer?
eBay, Poshmark, Amazon, Etsy, Mercari, and Depop fee calculators can all be accessed from our home page at SalesCircles.org.
Do you offer a Profit Calculator for major online marketplaces?
Yes, we offer eBay, Poshmark, Amazon, Etsy, Mercari, and Depop profit calculators. In fact, all of our online marketplace calculators are profit based.
Where can I find the selling fee calculator on your website?
The selling fees for eBay, Poshmark, Amazon, Etsy, Mercari, and Depop are baked in to each calculator. Just punch in how much you want to make.
Do you offer a small business calculator?
We do have specialty small business calculators for construction trades and industry.
What function do your small business calculators do?
SalesCircles trade calculators let you determine material cost, add additional taxable rates, and easily create a construction materials list that can be emailed to suppliers or text messaged to parts runners.
Can I add labor cost with your calculators?
Once you pick your materials you can add labor for a full job quote. When you have the quote approved just export a material list.
How much does eBay, Poshmark, Amazon, Etsy, Mercari or Depop take in fees?
Each online retailer takes a different percentage. Most have a flat fee with a percentage of the purchase price. However, there are nuances to each online marketplace. All of those additional fees are automatically totaled to help you make your desired profit.
Why do you offer these types of seller tools?
When you start out trying to sell online there are plenty of other challenges. Charging the correct price to factor in marketplace fees, shipping, and percentage of sale fees is essential to success. Nothing is worse than not making enough to cover shipping of an online sale. SalesCircles.org is here to help you avoid online startup pitfalls.