How to use the centimorgan to megabase calculator
Convert a genetic map distance in centimorgans into an approximate physical distance in megabases. Enter map distance, megabases per cm (human average) in the fields above; the approximate physical distance is computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “centimorgans to megabases”, “cM to Mb”, “physical distance from map distance”, “calculate centimorgan to megabase”, “find approximate physical distance”.
Formula
Variables
- cM — Map distance (cM)
- rate — Megabases per cM (human average)
Worked example
With map distance = 15 cM, megabases per cm (human average) = 1, the calculator gives approximate physical distance ≈ 15 Mb.
Frequently asked questions
What is the centimorgan to megabase calculator used for?
Convert a genetic map distance in centimorgans into an approximate physical distance in megabases. It helps with questions such as “centimorgans to megabases”, “cM to Mb”, “physical distance from map distance”.
What is the formula for the centimorgan to megabase calculation?
Approximate physical distance (Mb) = cM × rate. Here cM is map distance (cM), rate is megabases per cm (human average).
What inputs do I need for the centimorgan to megabase converter calculator?
You need map distance in cM, megabases per cm (human average). Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the centimorgan to megabase calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the centimorgan to megabase result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.