Laboratory cell counting chamber calculator

Calculate estimated cells per mL and total cells counted with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use estimated cells per mL and total cells counted to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Counts in equal chamber regions
80,90,85,95
Area of each counted region (mm²)
1
Chamber depth (mm)
0.1
Dilution factor
2
Estimated cells per mL
1750000
Total cells counted
350

Try another scenario

Counts in equal chamber regions
[80, 90, 85, 95]
Area of each counted region (mm²)
1.1
Chamber depth (mm)
0.1
Dilution factor
2
Estimated cells per mL
1,590,909.090909
Total cells counted
350
Calculation method

Calculation method

Estimated cells per mL

Mean region count/(area×depth mm³) ×1000 ×dilution.

Total cells counted

Sum counts; assumes equal region geometry.

Symbols and units
a
Counts in equal chamber regions
b
Area of each counted region (mm²)
c
Chamber depth (mm)
d
Dilution factor

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Observed counts, chamber geometry, dilution. Returns Cell concentration estimate. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Counts in equal chamber regions: minimum 0, maximum 1000000000000.0. Area of each counted region (mm²): minimum 1e-12, maximum 1000000000000.0. Chamber depth (mm): minimum 1e-12, maximum 1000000000000.0. Dilution factor: minimum 1e-12, maximum 1000000000000.0.
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