Calculations

How to Calculate Yield, Potency Overfill, and Dosage Output for Nutraceuticals

The core formulas every supplement operator runs, from blend yield and potency overfill to dosage unit output, worked with real batch numbers.

A supplement batch touches four core calculations before it ships: blend yield, ingredient potency overfill, dosage unit output (capsule or tablet), and packaging line capacity. Each carries its own unit set. Blend and yield work in kilograms, potency in milligrams per dose and percent assay, output in dosage units per hour, and packaging in bottles per minute. Get the potency math wrong and you either fail label claim or overspend on active. Get yield wrong and your batch card reconciliation fails GMP review. Work each number from its own source data rather than back-calculating from a target unit count.

Blend yield measures how much of your theoretical charge survives mixing and transfer. The formula is blend yield equals net blend weight out divided by theoretical input weight, times 100. If you charge 250.0 kg of raw materials and recover 242.5 kg after the blender, bin, and transfer lines, yield is 97.0 percent, a 7.5 kg loss. Losses come from dust collection, blender wall film, and residual heel in the discharge bin, typically 2 to 4 percent for a fine powder blend. The Blend Yield calculator reconciles charged weight against recovered weight so your batch record ties out.

Ingredient potency overfill guarantees you still meet label claim at the end of shelf life. Required input potency equals label claim divided by (assay purity times (1 minus degradation fraction)). For a 500 mg vitamin C claim, a raw material assay of 99.0 percent, and expected degradation of 8 percent over 24 months, you need 500 divided by (0.99 times 0.92), which is 549 mg per dose, an overfill of 9.8 percent. Overage scales with instability: vitamin C and folate may need 8 to 15 percent, while minerals need 1 to 3 percent. The Ingredient Potency Overfill calculator solves this for each active.

Capsule fill rate ties dose to powder volume. First find fill weight: target active dose divided by the active fraction of your blend. A 250 mg active in a blend that is 50 percent active needs a 500 mg fill weight. Then check it physically fits: a size 0 capsule holds about 0.68 mL, so at a tapped bulk density of 0.60 g/mL its capacity is roughly 408 mg. Your 500 mg fill will not seat; you move to a size 00 (0.95 mL, about 570 mg capacity). The Capsule Fill Rate calculator checks fill weight against capsule volume and density.

Tablet compression yield compares good tablets pressed against the theoretical count the blend should have produced. Theoretical tablets equals total blend weight divided by target tablet weight. A 200.0 kg blend at 800 mg per tablet gives 250,000 theoretical tablets. If you release 244,000 after rejecting capping, weight-out-of-spec, and setup tablets, yield is 97.6 percent. Compression yield below 95 percent usually points to poor flow, punch wear, or an unstable weight loop. Track setup scrap separately from in-run rejects. The Tablet Compression Yield calculator handles the reconciliation and flags the loss category.

Packaging line capacity converts nameplate speed into a shift number you can plan against. Capacity equals rated line speed times availability times scheduled run minutes. A filler rated at 120 bottles per minute, running at 85 percent availability across a 420 minute scheduled shift, yields 120 times 0.85 times 420, which is 42,840 bottles. The availability factor absorbs changeovers, jams, and micro-stops. Plan to nameplate and you overpromise by 15 to 30 percent. The Packaging Line Capacity calculator lets you flex speed and availability to size a run window before you commit a ship date.

These numbers compound. A batch that starts as 250 kg of blend at 97.0 percent blend yield, then 97.6 percent compression yield, then 98.5 percent packaging yield, delivers a cumulative yield of 0.970 times 0.976 times 0.985, or 93.2 percent, to finished goods. On a theoretical 250,000 tablets that is roughly 233,000 shipped. Always multiply stage yields rather than averaging them, and reconcile each stage against its own charged weight. If your finished count and your potency overfill do not agree with the batch card, one of these four calculations, not the whole batch, is where the error lives.

Published 2026-07-02.