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# Calculators

Here are some helpful calculators and conversion utilities to assist you in your cosmetic formulating.

Percentage Calculators

 When you know the percentage you want to use of a particular ingredient, and how much you want to make of something, this calculator will determine how much of the ingredient you will need. Enter the percent you want to use, then enter the amount you want to make and click "Calculate". What is % of ? Answer: If you have a recipe and want to determine the percentage of use for each ingredient in it, this calculator can be used to determine this. Enter the amount of the ingredient, then enter the batch size of the formula and click "Calculate". is what percent of ? Answer: % If you have a certain amount of an ingredient you want to use it at a given percent in a formula, use this calculator to calculate how much of your formula you can make with what you have (example, 10 grams used at 10% in a formula will make 100 grams of product). Enter the amount of the ingredient you have, then enter the percent you intend to use, then click "Calculate". used at percent will make? Answer:

Weight Conversion

Use this calculator to convert between imperial (US) ounces/pounds and metric grams/kilos weights.

Enter one of the amounts to convert from, then click "Calculate." Click "Clear" to start over.
 kilos grams ounces pounds

Liquid Volume Converter

We always recommend cosmetic formulating be done by weight, not volume. But when you are working with volumetric measurements, use this calculator to convert instantly between gallons, liters, pints, cups, teaspoons, and even drops, from imperial (USA) volume and metric volume units. Note, for ease of use we have rounded off: 30ml = 1 ounce and 20 drops = 1ml (the metric equivalent, rather than the pharmaceutical standard). Since dropper openings will vary and droplet sizes are also affected by the surface tension of the fluid itself, numbers of drops are, at best, an estimate.

Choose the measure to convert from and the one to convert to, then enter the amount to convert, and click on Convert.
 Convert  From
 Convert  To
Liquid Volume
To Convert
Converted
Volume

Dilution Calculator

This will calculate the volume of a Stock concentrate (example, Lactic Acid 90%) needed to add to a formula or another product (like a lotion base or water) to achieve another specific concentration (example, a 20% Lactic Acid solution). To use this calculator, you need to know how much you want to make, the concentration you want to have in the final product, and the concentration of the Stock solution you will be using. Enter the total amount you want to make, the concentration you want in the end product, and the concentration of the Stock solution, then click 'Calculate', and the calculator will tell you the amount of 'base' to use (water, lotion, formula etc.) and how much of the Stock solution to add to it to make the amount of product you want in the desired concentration.

The calculator doesn't need to know if you are using teaspoons, tablespoons, ounces, milliliters, grams or kilos; it is simply performing a mathematical calculation. If you are working in ounces, then the results are to be interpreted in ounces, if working in grams or milliliters, then what is displayed will be those. Do not mix and match!

 Enter the total amount you want to make (oz, gram, ml, etc.) The desired concentration you want % The concentration of the Stock solution % Amount of "base" to use (oz, gram, ml, etc.) Amount of Stock solution to use (oz, gram, ml, etc.) to make (oz, gram, ml, etc.)

Temperature Conversion

Enter a value for Fahrenheit or Celsius, then click "Calculate".
 F C

Date Conversion / Lot Number Generator

Use this Date Conversion utility to assist you in creating Lot Number labeling for your products. This enables you to create a Lot Number that you can easily identify.  For example, the first batch of product made on January 2, 2016 might be assigned this number: 1600201 (16=year, 002=day number, 01=batch number of the day). The calculator generates a sample Lot Number for you.

Enter any Date (mo day year) or Day Number (for this year) you wish to calculate. Note, today's date is always the default and is displayed automatically (unless you have had this page displayed overnight, in which case, click "Reset" to refresh the input).

 mo day year day number sample lot number

News
11-20-2018
Lotioncrafter will be closed on Thursday and Friday, November 22nd and 23rd for the Thanksgiving holiday. During that time email and telephone calls will not be returned (we will respond as quickly as possible next week, after shipping deadlines have been met on Monday afternoon). Our shopping cart will remain active and we will continue to process orders. UPS and Mail shipping will resume on Monday morning, November 26th. DUE TO THE CLOSURE, IF YOU CALL OR WRITE TO ALTER ORDERS ONCE THEY ARE PLACED, DUE TO THE VOLUME OF ORDERS WE WILL BE PROCESSING MONDAY, WE CANNOT GUARANTEE WE WILL SEE YOUR EMAIL OR HEAR YOUR MESSAGE BEFORE SHIPPING. IF WE ARE ABLE TO DO SO, YOUR ORDER WILL BE PULLED FROM THE QUEUE, ADJUSTED AND SHIPPED AFTER OTHER ORDERS WHICH COULD DELAY SHIPPING BY A DAY. Thank you for your understanding. TO ALL OF OUR USA CUSTOMERS, WE WISH YOU A SAFE AND ENJOYABLE THANKSGIVING HOLIDAY!!

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Our Customers Say...
I can't believe I didn't find you guys earlier. I have been making skin care for almost 20 years. It has almost been a challenge as a small manufacturer to buy small quantities of high quality skin care ingredients, and yet here you were just across Puget Sound.
George Tindalls

I order from the UK and can't say what a pleasure it is to buy from you. It's wonderful to have such a good choice of products to choose from too. :-) My parcel always arrives properly processed and well packed. Although I sometimes wait a while for it due to customs - it's always well worth the wait!
Thank you for such an excellent service!
JC

I just received my first order & am very impressed! The packaging is amazing, products look fantastic and the shipping was very fast! What great customer service! I will order again; Thank you!
Kate

Wow, I can't say enough about my experiences with this company.
I have been happy with everything I've ordered and their pricing is very competitive but it is the customer service that sets Lotioncrafter apart from other companies.
Orders are processed and shipped quicker than any other company I've ordered from & each time I've received a refund for lower shipping costs before I even noticed!
Any questions I've had were answered right away & even received a phone call to explain things more personally.
Thank you so much for the great work!
Lisa

I have been buying products from lotioncrafter since 2012 (I think? maybe longer?).

Why?

Because they run a fantastic business, one.

Two, because they are some of the friendliest people in the cosmetic supply business.

Three, because they sell everything at a fair price, which is important when you are sourcing things for a boutique beauty brand like mine.

Four, because they have things I cannot get in small quantities anywhere else.

They are friendly, efficient, sell ethical products and just run a great business. I'm proud to be a customer, I'm glad they are one of my suppliers, and I don't forsee that changing anytime soon. Thanks for being awesome, LotionCrafter!

Audra Hughes
Owner, propheticscosmetics.com
Audra Hughes