Tons to Pieces Converter
Calculate item count from total weight for inventory audits. Supports bidirectional calculation for finding unit weights or total quantities.
About
Inventory accuracy dictates capital efficiency. In manufacturing and logistics, physical stock often arrives in bulk weight (tons or kilograms) while ERP systems track individual units. Manual counting is inefficient for small components like fasteners, washers, or electronic parts. This tool replicates the function of a digital counting scale.
It solves two specific problems: converting a bulk weight into a quantity using a known unit weight, and conversely, determining the average unit weight of a sample batch to calibrate future audits. Precision is handled via floating-point arithmetic designed for high-volume, low-weight items where rounding errors can result in significant stock discrepancies.
Formulas
The core logic relies on the relationship between total mass, count, and individual mass. Depending on the direction of calculation, the formula rearranges.
To find Count:
To find Unit Weight:
Where N is the count (integer), Mtotal is the bulk mass, and munit is the mass of a single piece. Unit consistency is enforced before division.
Reference Data
| Material / Item | Approx Unit Weight (g) | Items per Ton (Metric) | Context |
|---|---|---|---|
| Standard Brick | 2300 | 435 | Construction |
| Steel Rebar (1m, Φ12mm) | 888 | 1126 | Reinforcement |
| M10 Bolt (x40mm) | 34.5 | 28,985 | Fasteners |
| M6 Washer | 1.4 | 714,285 | Assembly |
| Plastic Bottle (500ml empty) | 10 | 100,000 | Recycling |
| Grain of Rice (Long Grain) | 0.029 | 34,482,758 | Agriculture |
| Sovereign Coin (Gold) | 7.98 | 125,313 | Bullion |
| A4 Paper Sheet (80gsm) | 5.0 | 200,000 | Stationery |