Ardent Seller — embeddable calculator

Safety first. Always weigh on a calibrated digital scale, wear gloves and safety goggles, and add lye into water (never water into lye). This calculator computes the math; it does not replace careful handling or a small batch test.

Sample data pre-filled — a basic 1000g cold-process bar at 35% olive / 25% coconut / 25% palm / 10% shea / 5% castor with 5% superfat. Edit to your recipe.

Your recipe

Oils as % of total. Total oil weight in grams drives every other number.

Total oil weight

grams= 35.3 oz

Soap type

NaOH — bar soap (cold/hot process)KOH — liquid soap paste

KOH SAP = NaOH SAP × 1.4025 (Dunn, 2010). KOH paste is then diluted with water for final liquid soap.

Superfat / lye discount5%

% of oils left unsaponified (extra moisturizing). 5% is the standard cold-process starting point. 0–3% for laundry / cleansing soap; 5–8% for facial bars; KOH liquid soap typically uses 0–3%.

Water method

Lye-to-water ratio (recommended)Water as % of oils

Lye : Water ratio

1 :

Full water = 1 : 2.5 (38% of oils). Water discount = 1 : 1.5–1.8. Lower water = harder/faster-tracing bar.

Fragrance load3%

Cold-process soap: typical 3–6%, max safe ~6–8% (subject to IFRA category limits for the specific fragrance). See the Fragrance Load Calculator for medium-by-medium guidance.

Oils + percentages

Total: 100% — balanced.

Recipe

Weigh each on a digital gram scale before combining.

NaOH (lye)

139.2 g

4.9 oz · 5% superfat

Water

278.5 g

9.8 oz

Always pour the lye into the water (slowly, while stirring) — never the reverse. Reverse will erupt.

Oils (by weight)

Oils in your recipe by weight
Oil	%	Grams	Ounces
Olive Oil	35%	350.0	12.3
Coconut Oil (76°)	25%	250.0	8.8
Palm Oil	25%	250.0	8.8
Shea Butter	10%	100.0	3.5
Castor Oil	5%	50.0	1.8

Fragrance / essential oil

30.0 g

1.1 oz · 3% of oil weight

Total batch weight

1,447.7 g

51.1 oz · 3.2 lb