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Price Per Gram Calculator

Compare unit prices in dollars per gram to find the best value. Includes a formula, examples, and how to calculate price per gram for precious metals and small items.

Unit Price Calculator

Compare unit prices of multiple products to find the best value. Enter price and quantity for up to 3 products.

Product A

Unit Price: $5/g
15% more expensive

Product BBest Value

Unit Price: $4.25/g
Best Value - Save up to4.25 per unit

Comparison Summary

Product BBest
Unit Price: $4.25/g
Product A
Unit Price: $5/g
15% more expensive

Price Per Gram Calculator

Compare unit prices in dollars per gram to find the best value for precious metals, spices, and small items.

Price Per Gram Formula

textPricePerGram=fractextTotalPricetextQuantityinGrams\\text{Price Per Gram} = \\frac{\\text{Total Price}}{\\text{Quantity in Grams}} textGrams=textOuncestimes28.3495\\text{Grams} = \\text{Ounces} \\times 28.3495 textGrams=textPoundstimes453.592\\text{Grams} = \\text{Pounds} \\times 453.592 textGrams=textKilogramstimes1,000\\text{Grams} = \\text{Kilograms} \\times 1,000

How to Calculate Price Per Gram

  1. Find the total price - The amount you're paying for the product
  2. Convert quantity to grams - If the weight is in ounces, pounds, or kilograms, convert to grams
  3. Divide - Total price divided by quantity in grams

Worked Example

You're comparing two packages of gold tea bags:

  • Package A: $29.99 for 100g
  • Package B: $14.99 for 50g

Let's calculate:

Package A:

  • Already in grams: 100g
  • 29.99÷100g=∗∗29.99 ÷ 100g = **0.30/g**

Package B:

  • Already in grams: 50g
  • 14.99÷50g=∗∗14.99 ÷ 50g = **0.30/g**

Both packages have the same price per gram, so neither is better value.

Another Example - Different Values

You're comparing two brands of saffron:

  • Brand A: $99.99 for 5g
  • Brand B: $149.99 for 10g

Brand A:

  • 99.99÷5g=∗∗99.99 ÷ 5g = **19.998/g**

Brand B:

  • 149.99÷10g=∗∗149.99 ÷ 10g = **14.999/g**

Brand B is cheaper by $5 per gram!

Common Price Per Gram Comparisons

Coffee Beans

| Brand | Weight | Price | Price Per Gram | |-------|--------|-------|----------------| | Brand A | 100g | 14.99∣14.99 | 0.15/g | | Brand B | 250g | 32.99∣32.99 | 0.13/g | | Brand C | 500g | 64.99∣64.99 | 0.13/g |

Tea

| Brand | Weight | Price | Price Per Gram | |-------|--------|-------|----------------| | Brand A | 20 tea bags | 8.99∣8.99 | 0.45/g | | Brand B | 20 tea bags | 6.99∣6.99 | 0.35/g |

Spices

| Spice | Weight | Price | Price Per Gram | |-------|--------|-------|----------------| | Ground Cinnamon | 2oz (56g) | 3.99∣3.99 | 0.07/g | | Ground Cumin | 2oz (56g) | 4.49∣4.49 | 0.08/g | | Paprika | 2oz (56g) | 3.79∣3.79 | 0.07/g |

Precious Metals (Gold Price Example)

| Weight | Spot Price | Price Per Gram | |--------|------------|----------------| | 1g | 70∣70 | 70.00/g | | 10g | 700∣700 | 70.00/g | | 100g | 7,000∣7,000 | 70.00/g |

When to Use Price Per Gram

Price per gram is particularly useful for:

  • Precious metals - Gold, silver, platinum are priced per gram or troy ounce
  • Spices and herbs - High-value items sold in small quantities
  • Cosmetics - Serums, oils, and high-end products
  • Pharmaceuticals - Medications priced by weight
  • Craft supplies - Beads, resins, and specialty materials

Gram Conversion Reference

| Ounces | Pounds | Kilograms | Grams | |--------|--------|-----------|-------| | 1oz | 0.0625lb | 0.028kg | 28.35g | | 2oz | 0.125lb | 0.057kg | 56.70g | | 4oz | 0.25lb | 0.113kg | 113.40g | | 8oz | 0.5lb | 0.227kg | 226.80g | | 16oz | 1lb | 0.454kg | 453.60g |

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