PCR & qPCR Master Mix Calculator

From formula to a bench-ready decision.

Convert a per-reaction recipe into a master mix sized for the entire run.

Tossora Lab keeps units, intermediate values, and practical preparation checks visible so a mathematically correct answer is easier to translate into an experimental workflow.

What Tossora Lab checks.

• Scales every component consistently.
• Adds configurable overage for pipetting loss.
• Separates component totals from per-reaction values.

Before you use the result.

• Follow the polymerase or master-mix manufacturer’s recommended component limits.
• Prepare master mix for shared components to reduce well-to-well variability.

Research use only. Verify critical calculations, reagent specifications, route or instrument limits, and procedures against your approved protocol and institutional requirements.