iSolveTo← Space & Astronomy
🛰️ Space & Astronomy

Parallax Distance Calculator

Calculate stellar distance from trigonometric parallax measured in milliarcseconds.

Free toolGlobal unitsMobile friendly

Enter values

Use the inputs below to calculate the result.

Result

Calculated value—
Uses standard astronomy constants; results are mathematical estimates and should not replace mission-grade ephemerides or navigation data.

How it works

Calculate stellar distance from trigonometric parallax measured in milliarcseconds.

d(pc) = 1 / p(arcsec)

How to use this calculator

What to enter

Enter or select the following as requested: Stellar parallax (milliarcseconds). Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The astronomy result converts or estimates a distance, time, brightness, gravity, or orbital quantity from the entered astronomical values and model. Check the units, reference frame, object assumptions, and whether the formula uses idealized orbital or observational conditions.

When to use it

Use this for astronomy learning or preliminary calculations. Confirm the units and scientific model and consult reliable observational data when precision matters.