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Mass Flow Rate

lb/daytot/hr

Convert pounds per day (lb/day) to metric tonnes per hour (t/hr).

Factor1 lb/day = 1.889968e-5 t/hr

Converter

lb/day

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1.88997t/hr

Rendered to 6 significant figures.

Formula

Formula
t/hr = lb/day × 1.889968e-5

Multiply any value in pounds per day by 1.889968e-5 to obtain the value in metric tonnes per hour.

Worked example

Convert 100000 lb/day to t/hr.

  1. 01Start with 100000 lb/day.
  2. 02Multiply by the conversion factor: 100000 × 1.889968e-5 = 1.88997 t/hr.
Result100000 lb/day = 1.88997 t/hr

Conversion table

lb/dayt/hr
11.89e-5
23.7799e-5
59.4498e-5
100.000189
200.00037799
500.00094498
1000.00189
2000.0037799
5000.0094498
10000.0189

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lb/day to t/hr?
1 lb/day equals 1.889968e-5 t/hr. To convert, multiply the value in pounds per day by 1.889968e-5.
How do I convert 1 lb/day to t/hr?
1 lb/day = 1.88997e-5 t/hr. For any value, multiply by 1.889968e-5.
How do I convert t/hr back to lb/day?
Divide by the same factor — or equivalently, multiply by 52910.94. So 1 t/hr = 52910.9 lb/day.
When would I need to convert pound per day to metric tonne per hour?
Mass flow conversions between lb/day and t/hr are common in material balances, process stream summaries, bulk solids handling, custody transfer, and equipment sizing where kg/hr, t/hr, lb/hr, and lb/s may all appear in different datasheets or vendor documents.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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