Use this dilution concentration calculator to determine the wt% concentration of up to three chemicals after preparing a stock solution and performing one or two dilution steps.
This tool is especially useful when preparing calibration standards, working solutions, or laboratory mixtures.
All inputs are mass (grams). Concentrations are calculated as weight percent (wt%).
Dilution Concentration Calculator Interface
Reference Formulas
Stock Solution Concentration
\[ C_A^{stock} = \frac{m_A}{m_A + m_B + m_C + m_{solvent}} \times 100 \] \[ C_B^{stock} = \frac{m_B}{m_A + m_B + m_C + m_{solvent}} \times 100 \] \[ C_C^{stock} = \frac{m_C}{m_A + m_B + m_C + m_{solvent}} \times 100 \]Dilution 1 Concentration
\[ C_A^{d1} = C_A^{stock} \times \frac{m_{stock}}{m_{stock} + m_{solvent1}} \] \[ C_B^{d1} = C_B^{stock} \times \frac{m_{stock}}{m_{stock} + m_{solvent1}} \] \[ C_C^{d1} = C_C^{stock} \times \frac{m_{stock}}{m_{stock} + m_{solvent1}} \]Dilution 2 Concentration
\[ C_A^{d2} = C_A^{d1} \times \frac{m_{d1}}{m_{d1} + m_{solvent2}} \] \[ C_B^{d2} = C_B^{d1} \times \frac{m_{d1}}{m_{d1} + m_{solvent2}} \] \[ C_C^{d2} = C_C^{d1} \times \frac{m_{d1}}{m_{d1} + m_{solvent2}} \]Before You Go
Understanding dilution calculations is essential when preparing calibration standards, stock mixtures, and working solutions. This dilution concentration calculator simplifies multi-component solution preparation, but knowing the underlying principles can help avoid costly lab mistakes.
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