Generated by SassMeister.com.

SassMeister-input-HTML.html

<section>
  <div>1</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
  <div>6</div>
  <div>7</div>
  <div>8</div>
  <div>9</div>
  <div>10</div>
  <div>11</div>
  <div>12</div>
  <div>13</div>
  <div>14</div>
  <div>15</div>
  <div>16</div>
</section>

SassMeister-input.scss

// ----
// Sass (v3.4.9)
// Compass (v1.0.1)
// ----

@function grid-width($count, $width) {
  $grid-width: ($count - 1) * ($count * $width);
  @return $grid-width;
}

@function col-width($count, $gutter, $width) {
  $grid-width: ($count - 1) * $gutter + ($count * $width);
  @return $grid-width;
}

SassMeister-rendered.html

<section>
  <div>1</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
  <div>5</div>
  <div>6</div>
  <div>7</div>
  <div>8</div>
  <div>9</div>
  <div>10</div>
  <div>11</div>
  <div>12</div>
  <div>13</div>
  <div>14</div>
  <div>15</div>
  <div>16</div>
</section>