Grain to Pound Converter 2025 - gr to lb Calculator | Thiyagi

Grain to Pound Converter

Convert between grains and pounds for pharmaceutical, jewelry, and precision weight measurements

1 grain = 1/7000 pound
1 pound = 7000 grains
Enter a value to see the conversion result

Weight Conversion Reference

Grain ⇔ Pound
1 gr ⇔ 0.000142857 lb
10 gr ⇔ 0.001428571 lb
100 gr ⇔ 0.014285714 lb
1,000 gr ⇔ 0.142857143 lb
7,000 gr ⇔ 1 lb
70,000 gr ⇔ 10 lb

Precision Weight Examples

Pharmaceutical Dosages:
• Aspirin tablet: 5 grains (325 mg)
• Medicine dose: 0.5-15 grains
• Prescription: 1/4 to 10 grains
• Apothecary system: Traditional grains
Jewelry & Precious Metals:
• Diamond: 1-5 grains (0.2-1 carat)
• Gold dust: 1-100 grains
• Pearl: 2-20 grains
• Small gem: 0.5-10 grains
Scientific Measurements:
• Chemical samples: 1-1000 grains
• Powder amounts: 0.1-100 grains
• Research quantities: Precise to 0.01 gr
• Analytical balance: ±0.001 grain accuracy

Weight Units

  • Grain: 1/7000 pound = 64.79891 mg
  • Pound: 7000 grains = 453.592 g
  • Conversion: 1 lb = 7000 gr
  • System: Imperial/Apothecary units

Measurement Tips

  • Use analytical balance for grains
  • Check calibration regularly
  • Account for environmental factors
  • Record measurements precisely

Applications

  • Pharmacy: Drug dosages
  • Jewelry: Precious metals/gems
  • Science: Laboratory measurements
  • History: Apothecary system