Fragrance Scale: Weighing Perfume Oils and Formulas by the 0.01 g

A fragrance scale has to read perfume oils and aroma chemicals to the hundredth of a gram, and the one we recommend first is the A&D EK-610i: 600 g × 0.01 g with a built-in percent mode, on sale for $489.00 (regular $985.00) and in stock.

Perfumers, cosmetic makers and candle makers all hit the same problem: drops and pipettes are not consistent from one oil to the next, so formulas written in drops do not repeat. Weighing every ingredient in grams fixes that. This guide covers how to pick a fragrance scale, how to weigh a formula by percent, and how to keep a log you can scale up later.

Fragrance scales in stock at live prices

Fragrance scale	Capacity × readability	NTEP	What stands out	Price	Best fit
A&D EK-610i	600 g × 0.01 g	non-NTEP	±0.02 g linearity, percent and counting modes, 16 mm backlit LCD, Ø110 mm stainless pan, RS-232C, AC adapter included	$489.00 (reg. $985.00)	Perfume and cosmetic formulas, candle fragrance loads
Sartorius BCE622-1S Entris II	620 g × 0.01 g	non-NTEP	About 0.9 s stabilization, LED touch display, 12 applications, 182 × 182 mm pan, RS232 and USB-C	$945.00 (reg. $1,340.00)	Studios and labs that want faster readings and a larger pan
A&D FX-1200iN	1,220 g × 0.01 g	NTEP Class II (CC 08-045A6)	About 1 s readings, Ø150 mm pan, percent and counting modes, RS-232C	$628.00 (reg. $1,510.00)	Selling fragrance or ingredients by weight

How to pick a fragrance scale

• Readability: 0.01 g. Most perfume and cosmetic formulas list materials to two decimals in grams. If your formula calls for trace materials in milligrams, see our milligram scale guide for 0.001 g options.
• Capacity: your heaviest container plus the batch. A 100 ml glass beaker or bottle plus 200 g of blend fits easily on a 600 g balance.
• Percent mode. The EK-610i and FX-1200iN have a percent mode that shows a reading as a percentage of a reference weight, handy for checking a batch against a formula.
• A pan you can wipe. Oils and alcohol get on everything; a stainless pan and a sealed keypad clean up fast.
• NTEP only if you sell by weight. Formulating in a studio does not need NTEP; selling oils or blends by the gram does.

Weighing a formula by percent

Write your formula in percent so it scales to any batch size, then convert each line to grams for the batch you are making. For example, a 50 g batch of a blend that is 20% top notes, 50% heart notes and 30% base notes needs 10.00 g, 25.00 g and 15.00 g. Double the batch and every gram doubles with it. Weigh the heaviest-used material first so small weighing errors on trace materials matter less.

Drops vs grams

A drop of a thin citrus oil and a drop of a thick resin or absolute do not weigh the same, and dropper tips vary too. That is why a formula written in drops rarely smells the same twice. If you have an old formula in drops, weigh 20 drops of each material once, note the grams, and rewrite the formula in grams from then on.

Tare the bottle and control the room

1. Level the balance with its bubble and let it warm up on the adapter before you start.
2. Set the empty beaker or bottle on the pan and press tare (zero).
3. Add the first material, read the weight, and tare again before the next one, or keep a running total if you prefer.
4. Keep fans, air-conditioning vents and open windows away from the pan; moving air can nudge a 0.01 g reading.
5. Wipe spills right away; oils left on the pan add weight to the next reading.

Keep a simple formula log

• Formula name, version and date
• Each material, supplier and lot number
• Target grams and actual grams for every line
• Total batch weight and container
• Notes on how it smelled at day 1, week 1 and after maturing

A log in grams lets you repeat a winning batch exactly, scale it up for production, and trace a problem back to one material or lot.

Selling fragrance by weight

The A&D EK-610i and Sartorius BCE622-1S are non-NTEP, which is the right fit for formulating and quality checks. If you sell oils, blends or ingredients by the gram, the scale must be NTEP approved. Here is an NTEP alternative: the A&D FX-1200iN, 1,220 g × 0.01 g, NTEP Class II under Certificate of Conformance 08-045A6, $628.00 (regular $1,510.00), in stock. Read what NTEP and legal for trade mean or check a model with our legal-for-trade scale checker.

Calibration, repair and rentals

All three balances in this guide are under 2.2 kg, so in-house calibration with a certificate is $95.00 and NIST calibration with a NIST-traceable certificate is $395.00. You can add either when you order so the balance arrives calibrated. Mail-in calibration is available nationwide by mail, for in-house and NIST certificates, and usually takes 1–3 business days after we receive the balance. On-site calibration across Houston and its suburbs is $295 plus $2 per mile round trip. See balance calibration in Houston. We repair all brands and types of scales and balances through our Houston scale repair service.

Notes from our Cypress, TX shop

• Buy the capacity for your biggest bottle, not your smallest dose. A 600 g balance at 0.01 g covers almost every studio batch.
• Calibrate on arrival. A balance that traveled across the country should be calibrated where it will be used; the EK-610i calibrates with an external weight (not included), or add our calibration when you order.
• Keep alcohol and oils off the display. Wipe the pan, not the keypad, with solvent.
• Making soap too? Our soap making scale guide covers oils and lye by the batch.

Frequently asked questions

What is the best fragrance scale?

For most perfume, cosmetic and candle fragrance work, we recommend the A&D EK-610i: 600 g × 0.01 g with ±0.02 g linearity and a percent mode, at $489.00. For a larger pan and touch display, the Sartorius BCE622-1S at $945.00.

What readability do I need to weigh perfume oils?

0.01 g covers most perfume and cosmetic formulas. If your formula lists trace materials in milligrams, use a 0.001 g balance; see our milligram scale guide.

Should I measure fragrance in drops or grams?

Grams. Drop size changes with the oil’s thickness and the dropper, so a formula in drops does not repeat. Weigh each material in grams and write the formula in percent.

Is the EK-610i NTEP legal for trade?

No, the A&D EK-610i is non-NTEP. It is built for formulating and testing. Here is an NTEP alternative: the A&D FX-1200iN, 1,220 g × 0.01 g, NTEP Class II under Certificate of Conformance 08-045A6, $628.00 (regular $1,510.00), in stock.

How much does it cost to calibrate a fragrance scale?

Balances up to 2.2 kg are $95.00 for in-house calibration with a certificate or $395.00 for NIST calibration with a NIST-traceable certificate. Mail-in is available nationwide by mail.

Can I use a pocket scale for perfume?

A pocket scale can work for small tests, but a bench balance like the EK-610i has the capacity for a batch bottle, better linearity and a stable pan, which matters when you scale a formula up.