A little help for
shop owners.
Everyday numbers for stock, prices and paperwork. Your collection is a starting point; all tools remain available.
Shopping cart total
Estimate a cart after one discount, shipping and a user-entered tax rate.
Marketplace fee price
Find a selling price that covers cost, a fixed fee, a sales percentage fee and a target profit.
Landed cost per unit
Allocate purchase, freight and other stated charges over sellable units.
Economic order quantity
Balance ordering and holding costs under the basic constant-demand EOQ model.
Stock cover days
Estimate how long available stock will last at a stated daily demand.
Sell-through rate
Measure units sold as a percentage of units available during a period.
Freelance break-even rate
Plan an hourly rate from income goals, overheads and realistically billable hours.
Cash runway calculator
Estimate months of runway while monthly cash outflow exceeds inflow.
Gross profit calculator
Separate revenue and cost of goods sold from gross profit.
Operating margin calculator
Measure operating income against sales for the same period.
Current ratio calculator
Compare current assets with current liabilities.
Quick ratio calculator
Compare liquid current assets with current liabilities after inventory is excluded.
Text QR code
Create a QR code containing plain text.
URL QR code
Create a QR code for an HTTP or HTTPS address.
WiFi QR code
Make a WiFi connection code with escaped credentials.
Email QR code
Encode an email recipient and subject.
SMS QR code
Encode a phone number and message.
Phone QR code
Create a scan-to-call code.
PDF odd pages
Extract odd-numbered pages into a new document.
PDF even pages
Extract even-numbered pages into a new document.
PDF first page
Save the first page as a separate PDF.
PDF last page
Save the last page as a separate PDF.
PDF page count
Read the total page count of a PDF locally.
PDF optimize object streams
Rewrite PDF object streams and keep the smaller of the original and rewritten file.
Sri Lanka income tax estimator
Estimate annual progressive income tax using your verified brackets.
Sri Lanka monthly tax estimator
Annualize monthly income and estimate an average monthly tax.
Sri Lanka EPF estimator
Calculate employee and employer contributions from supplied rates.
Sri Lanka ETF estimator
Estimate employer ETF contribution using a supplied rate.
Percentage calculator
Find a percentage of a number.
Percentage change
Compare a new value with an original nonzero value.
Percentage difference
Compare two nonnegative values using their average.
Discount calculator
Find the final price and saving after a percentage discount.
Merge PDF
Combine several PDF documents in your selected order.
Extract PDF pages
Create a document from only the pages you choose.
Split PDF
Download a ZIP containing one PDF for every page.
Delete PDF pages
Remove selected pages from a copy of a PDF.