About POS Calculator
POS Calculator is a purpose-built calculator for small businesses, shops, and anyone who sells in person. It combines the speed of a classic calculator with the features you actually need at the counter.
Whether you're ringing up items, applying discounts, taking trade-ins, or splitting cash and card, POS Calculator keeps everything clear, fast, and mistake-free.
Designed for real-world selling
• Enter items using Qty @ Price — just like a cash register
• Supports partial quantities (3.5 lbs, 0.75 gallons, etc.)
• Built-in trade-in and store credit handling
• Per-item discounts — percentage or fixed dollar amount
• Automatic sales tax calculation
• Optional surcharge adjustment for card fees
Clear totals, no surprises
• See subtotal, discounts, tax, and total as you build the sale
• Credits and adjustments applied in the correct order
• Taxable and non-taxable items handled properly
Split Cash & Card
• Enter the cash amount tendered
• Instantly see how much goes on the card
• Calculate change due
Utility Calculator
A full calculator is always one tap away — no need to switch apps mid-sale.
Fast, tactile, and offline
• Works 100% offline
• No accounts, no ads, no tracking
POS Calculator is built for speed, clarity, and reliability at the counter — so you can focus on your customer, not your math.