Pharmacy Tablet Fraction Calculator

Most modern pharmacy POS systems default to 4 decimal places of precision on quantity fields. That works fine for tablet fractions (4 decimals can represent any tablet count up to about 9,999 per box without losing accuracy). If your system admin has changed it to 2 decimals, you'll lose accuracy on small partial sales — the warning row in the result tells you when this matters. Check with your POS administrator if you're unsure.

0.07 of a 96-tablet box = 6.72 tablets. The POS will record 6.72 tablets sold instead of 7 — your inventory will drift by 0.28 tablets per sale. Over hundreds of sales this becomes a real reconciliation problem. Always use at least 3 decimals (0.073) for small partials. The calculator's primary output uses 4 decimals to match what most POS systems support by default.

Yes — the math is unit-agnostic. Treat 'tablets' as 'mL' or 'g'. If a bottle has 100 mL and the patient needs 15 mL, enter 100 in 'box' and 15 in 'wanted' — you'll get 0.1500 for the POS. Same for creams measured in grams.

Inventory reconciliation. End-of-day the POS shows quantity 0.5208 sold for a product. To check if that's right, enter 0.5208 in reverse mode with the box size — you'll see it represents 50 tablets. If 50 tablets matches what the cashier actually dispensed (count the empty blister cells), the entry is correct.

Yes, eventually. The right long-term fix is to configure a secondary UoM ('Tablet') in your POS product master with the conversion factor (1 Box = N Tablets). Then the POS lets you sell directly in tablets without fractions. But that's a product-data migration project — for now, this calculator removes the cashier pain immediately.