KJV:

13 And these are the measures of the altar after the cubits: The cubit is a cubit and an hand breadth; even the bottom shall be a cubit, and the breadth a cubit, and the border thereof by the edge thereof round about shall be a span: and this shall be the higher place of the altar.
14 And from the bottom upon the ground even to the lower settle shall be two cubits, and the breadth one cubit; and from the lesser settle even to the greater settle shall be four cubits, and the breadth one cubit.
15 So the altar shall be four cubits; and from the altar and upward shall be four horns.
16 And the altar shall be twelve cubits long, twelve broad, square in the four squares thereof.
17 And the settle shall be fourteen cubits long and fourteen broad in the four squares thereof; and the border about it shall be half a cubit; and the bottom thereof shall be a cubit about; and his stairs shall look toward the east.

NASB:

13 "And these are the measurements of the altar by cubits (the cubit being a cubit and a handbreadth): the base shall be a cubit and the width a cubit, and its border on its edge round about one span; and this shall be the height of the base of the altar.
14 "From the base on the ground to the lower ledge shall be two cubits and the width one cubit; and from the smaller ledge to the larger ledge shall be four cubits and the width one cubit.
15 "The altar hearth shall be four cubits; and from the altar hearth shall extend upwards four horns.
16 "Now the altar hearth shall be twelve cubits long by twelve wide, square in its four sides.
17 "The ledge shall be fourteen cubits long by fourteen wide in its four sides, the border around it shall be half a cubit and its base shall be a cubit round about; and its steps shall face the east."

‫יג  וְאֵלֶּה מִדּוֹת הַמִּזְבֵּחַ בָּאַמּוֹת, אַמָּה אַמָּה וָטֹפַח; וְחֵיק הָאַמָּה וְאַמָּה-רֹחַב, וּגְבוּלָהּ אֶל-שְׂפָתָהּ סָבִיב זֶרֶת הָאֶחָד, וְזֶה, גַּב הַמִּזְבֵּחַ.

‫יד  וּמֵחֵיק הָאָרֶץ עַד-הָעֲזָרָה הַתַּחְתּוֹנָה, שְׁתַּיִם אַמּוֹת, וְרֹחַב, אַמָּה אֶחָת; וּמֵהָעֲזָרָה הַקְּטַנָּה עַד-הָעֲזָרָה הַגְּדוֹלָה, אַרְבַּע אַמּוֹת, וְרֹחַב, הָאַמָּה.

‫טו  וְהַהַרְאֵל, אַרְבַּע אַמּוֹת; וּמֵהָאֲרִאֵיל וּלְמַעְלָה, הַקְּרָנוֹת אַרְבַּע.

‫טז  וְהָאֲרִאֵיל, שְׁתֵּים עֶשְׂרֵה אֹרֶךְ, בִּשְׁתֵּים עֶשְׂרֵה, רֹחַב: רָבוּעַ, אֶל אַרְבַּעַת רְבָעָיו.

‫יז  וְהָעֲזָרָה אַרְבַּע עֶשְׂרֵה אֹרֶךְ, בְּאַרְבַּע עֶשְׂרֵה רֹחַב, אֶל, אַרְבַּעַת רְבָעֶיהָ; וְהַגְּבוּל סָבִיב אוֹתָהּ חֲצִי הָאַמָּה, וְהַחֵיק-לָהּ אַמָּה סָבִיב, וּמַעֲלֹתֵהוּ, פְּנוֹת קָדִים.