About Krevo

Krevo helps small sellers understand the numbers behind an order: profit, margin, pricing and parcel weight.

Four tools with a defined scope

The seller profit calculator subtracts item cost, postage and packaging, and a percentage fee applied to item sale price. The margin calculator distinguishes margin from markup. The price calculator solves for a price that covers entered fixed costs and a chosen profit target after one percentage fee. The dimensional-weight calculator compares volume-based weight with actual parcel weight before carrier rounding.

Start with your own records

Examples demonstrate arithmetic; they are not a live marketplace fee schedule or carrier quote. Use seller statements, supplier invoices and packed-parcel measurements as inputs. Fees on shipping or taxes, fixed processing charges, refunds, labor and overhead need deliberate treatment because the tools do not discover them automatically.

Our order-cost worksheet guide explains how to record those assumptions. The pricing guide shows how contribution, margin and markup answer different questions.

How the content is prepared

Initial explanatory drafts used AI assistance. Worked examples and calculator outputs are checked against the stated arithmetic. This is educational material, without a claim that a professional has reviewed your business or that a marketplace endorses Krevo. Read our editorial policy for the calculation and correction process.

Questions and corrections

Use the contact page to send a page URL, input values and expected result. Please omit customer information and account credentials. The privacy policy describes calculator inputs, messages and page-visit information.