2D Vector Angle Calculator

Vector V1: ,
Vector V2:,
 
Angle: Degrees

This is relatively simple because there is only one degree of freedom for 2D rotations. If v1 and v2 are normalised so that |v1|=|v2|=1, then, angle = acos(v1•v2)

where:
• = 'dot' product (see box on right of page).
acos = arc cos = inverse of cosine function see trigonometry page.
|v1|= magnitude of v1.

The only problem is, this won't give all possible values between 0° and 360°, or -180° and +180°. In other words, it won't tell us if v1 is ahead or behind v2, to go from v1 to v2 is the opposite direction from v2 to v1.

Buy A Calculator On Amazon
rotate 2d vector by angle,convert to angle,angle between vectors,angle two vectors,convert angle 2d,angle 2 points,getting from of points.2D Vector Angle Calculator
Recommendation Calculators Mortgage Affordability Calculator Simple Interest Mortgage Calculator United States (US) Income Tax Calculator UK Income Tax Calculator Self Employment Tax Calculator Sales Tax Calculator Property Millage Tax Calculator Medicare Tax Payment Calculator France Income Tax Calculator Federal Income Tax Calculator Value Added Tax(VAT) Calculator China Income Tax Calculator Australian Income Tax Calculator Interest Only Mortgage Calculator Interest Only Mortgage payment Calculator