The name Blanca in Hebrew letters is בלנקה. Below: how its number adds up, which page of the Torah it falls on and what verse stands there. Everything is computed, nothing is guessed.
בלנקה
In short
Your name in Hebrew letters is בלנקה. Spanish for “white”, from the Germanic blank, “bright, shining”. Several medieval queens of Castile and Navarre were called Blanca. In Hebrew it is written by sound. Adding up the numbers of its letters gives 187 — the same as the Torah word מספוא, “fodder”. That number points to Torah page 187 of 354 — in the portion Tazria. What that portion is about: The woman after childbirth; the laws of tzaraat on skin and garments — the signs and the priest's inspection. The verse that begins with the first letter of your name and ends with the last is Genesis 7:13. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Blanca” — this exact spelling is what was calculated: בלנקה. A name from the Tanakh — its Tanakh spelling is used. If your name is spelled differently, correct the Hebrew spelling and the report is recomputed.
Adding up the letters of the name בלנקה gives 187.
187
The number 187 is the Torah word מספוא — «fodder» (Genesis 24:25).
And if his hair be fallen off from the front part of his head, he is forehead-bald; yet is he clean.
This is from the portion Tazria. What it is about: The woman after childbirth; the laws of tzaraat on skin and garments — the signs and the priest's inspection.
Other ways of counting
The tradition counts the same name in several ways. The main one is above: each letter is its number. The other eight are old and checkable too; each gives its own number, and many of them have a Torah word with the same number.
Final letters as 500–900 (mispar gadol) — 187. A Torah word with the same number is מספוא — “fodder” (Genesis 24:25).
Reduced, each letter to one digit (mispar katan) — 16. A Torah word with the same number is אחז — “to seize” (Genesis 22:13).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 52. A Torah word with the same number is בן — “son” (Genesis 3:16).
Cumulative: a letter plus all letters before it (mispar kidmi) — 913.
Squares of the letter values (mispar perati) — 13429.
Building: the sum grows with each letter (mispar bone’eh) — 485. A Torah word with the same number is פתה — “to enlarge; entice” (Genesis 9:27).
The letters that come out are שכטדצ — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 423. A Torah word with the same number is פילגש — “concubine” (Genesis 22:24).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 784. A Torah word with the same number is מתושלח — “Methuselah, son of Enoch” (Genesis 5:21).
The number 187 appears in the classical books 2 times across 2 works. The earliest mention is דרושי שער הכוונות (~1573).
Every letter of the name explained, the words and namesakes with references, the Hebrew date, the letter and tribe of the month, day 861 of your life (±1), the psalm by age, the attestations from the classical books — a PDF sent to your email.
The number of the day, every morning
Every date has a number too. Once a year it will match the number of your name — 187. The channel posts one number a day, one verse and the Torah page it lands on. Nothing after it, no mailing list.
Hebrew is written from right to left. בלנקה has 5 letters: ב Bet, ל Lamed, נ Nun, ק Qof, ה He. The first letter is Bet, the last is He.
For an engraving, a sign or a tattoo, show the spelling to someone who reads Hebrew: transliterating a name is a choice, not the only option.
The name בלנקה does not stand as a word in the Pentateuch — as with most names, including many Tanakh names from the later books.
The verse of your name
There is a custom: at the end of the prayer one says a Torah verse that begins with the first letter of one's name and ends with its last. For בלנקה these are ב and ה. The Pentateuch has 16 such verses. The first of them is Genesis 7:13:
בעצם היום הזה בא נח ושם וחם ויפת בני נח ואשת נח ושלשת נשי בניו אתם אל התבה
This is from the portion Noach. What it is about: The flood and the ark; the rainbow as a sign of the covenant; the tower of Babel; ten generations from Noah to Abraham.
Each Hebrew letter has a number; a word's number is their sum (alef 1 … tav 400). The page is the remainder modulo 354: the Torah divided into 354 pages of 861 letters, as the lunar year has 354 days. Everything can be checked by hand.