角度测量转换器

通常用度数符号（°）表示，这是角的测量单位，等于其顶点在圆心，其射线（边）切断圆周的¹/₃₆₀的角。因此，一个完整的旋转是360°。度不是SI单位（国际单位制），角度通常用弧度测量，但在SI手册中提到它是一个公认的单位。

通常用符号rad表示，弧度是一种角的测量单位，定义为当角的射线（边）与圆相交，使沿圆的交点之间的长度等于圆的半径时产生的角度。

一个完整的旋转是2π弧度，所以每2π弧度有360°，所以1弧度等于180°/π或~57.296°/弧度。同样，一个直角（90°）是π/2弧度，而一个直角（180°）是π弧度。弧度是一个SI衍生单位，弧度被认为是无尺寸的值。

一个完整的旋转是2π弧度，所以每2π弧度有360°，所以1弧度等于180°/π或~57.296°/弧度。同样，一个直角（90°）是π/2弧度，而一个直角（180°）是π弧度。弧度是一个SI衍生单位，弧度被认为是无尺寸的值。

The milliradian, often denoted by the symbol mrad, is a unit of angular measurement that is ¹/₁₀₀₀ of a radian. Since a radian is the angle subtended by an arc equal in length to the radius of a circle, a milliradian is a much smaller unit, useful for precise measurements. In practical applications, milliradians are commonly used in ballistics, artillery, and in the adjustment of optical sights in shooting sports, where small angular adjustments are necessary for accuracy.

A micro-radian, denoted by the symbol µrad, is a unit of angular measurement equal to ¹/₁₀₀₀,₀₀₀ of a radian. Given its extremely small size, it is particularly useful in scientific and engineering fields that require extremely fine angular measurements, such as in the calibration of precision instruments, seismic studies, and astronomy. A micro-radian allows for the measurement of angles with high precision, which is crucial in applications where even tiny angular differences can be significant.

等级，也被称为坡度、倾斜度或坡度，通常是指像土地或道路这样的物理特征，其等级是表面相对于水平的角度（想想一个直角三角形，斜边是物理特征的表面）。因此，0%的坡度是一条直线，平坦的表面，0°角，或没有坡度的表面。较大的数字表示一个较大的角度。

Often slope is calculated as a ratio of rise to run, or as a fraction (rise over run) in which run is the horizontal distance and rise is the vertical distance. This is where it’s easy to think of the right triangle, where tan(angle) = rise/run, and the grade is calculated by multiplying rise/run by 100.

Denoted by the symbol gon or sometimes grad, a gradian is a unit of angular measurement where a full rotation is divided into 400 parts, making each gradian equal to ¹/₄₀₀ of a circle. This means that 100 gradians correspond to a right angle. The gradian system is primarily used in fields like surveying and civil engineering, where it simplifies calculations involving right angles and is more intuitive for decimal division compared to degrees. Like degrees, gradians are not SI units but are accepted in some engineering contexts.

弧分、弧分或分弧，是一个角度测量单位，等于1/60度。同样地，一秒弧或弧秒是一弧分的1/60。由于1度被定义为旋转的1/360，1分钟弧是旋转的1/21,600，也等于π⁄10,800弧度。它被用于需要表达小角度的单位的领域，如天文学、验光学、眼科学、光学、导航和射击。

弧秒也叫弧秒，是一个计量单位，相当于1/60的弧分。简单地说，它等于1/3600度。

这种测量单位在岩土工程监测和天文学中非常有用，因为天体的表面大小通常是通过角度测量来衡量的。然而，这些角度经常是如此之小，以至于用角分或角秒来指代它们更为简单。

Millimeters per meter is a unit of measurement that refers to the rise (in mm) and run (in m). Specifically, it is the rise value in millimeters that occurs over one meter. It is frequently used in laser leveling and construction tool applications to refer to the accuracy of instruments that are designed to make level surfaces (or surfaces with a specific slope) over longer distances.

A Mil, also known as the NATO Mil or angular mil, is a unit of angular measurement used in military and artillery contexts. One Mil is defined as ¹/₆₄₀₀ of a circle, so there are 6,400 Mils in a full rotation. This unit is particularly useful for calculating range and target adjustments in indirect fire scenarios, such as artillery and mortars, as well as in the adjustment of sights on firearms. The NATO Mil system simplifies angular calculations and conversions in a military context, allowing for quick and practical field use.