| Reign. | Coins and Ordinances. | Tale or Number of Pieces per Mark. | Standard. | Mint Value per Mark. | Value of each Old Real in the Modern Money. | Value of each successive particular Money named, in Reals of the Date of Issue. | Value of each such successive particular Old Money in Reals of To-day. |
|---|
| Bullion Value. | Ordinance Value in Coin as issued. |
|---|
| Mint Ordinance of | | Quilates. | Granos. | Reals. | Reals. | | Reals. | Mvds. | Reals (Vellon) |
| Ferdinand and Isabella. | Feb. 22, 1476, | | | | | | | | | |
| June 14, 1497— | | | | | | | | | |
| Excellentes majores | 25 | | | 22 | 3 | 716.98 | 720.22 | 4.185 | 28 | 28 | 121.91 |
| Medios excellenes | | | 50 | 14 | 14 | 60.95 |
| Doblas | | |
| Castellanos |
| | | | |
| Excellentes de la Granada | | | 65 1⁄3 | 7 | 7 | 46.67 |
| Ducados | | | | | (= .989) |
| | | | |
| Aguilas | | | 67 | 10 | 25 | 45.48 |
| Florines | | |
| | | | |
| Escudos | | | 68 | 10 | 29 | 41.82 |
| Coronas | | |
| | | | | | | | |
| Charles V. | 1537— | | | | | | | |
| New coining of escudos | 68 | 22 | 0 | 696.85 | 700.0 | 3.991 | 10 | 10 | 41.09 |
| | (= .917) | | | | | |
| Philip II. | Nov. 23, 1586— | | | | | | | |
| The escudo increased to 400 maravedis. | 68 | 22 | 0 | 766.40 | 800.0 | 3.493 | 11 | 26 | 41.09 |
| | | (=.917) | | | | | |
| | | | | | | | |
| Philip III. | 1609— | | | 68 | 22 | 0 | 847.09 | 880.0 | 3.175 | 12 | 32 | 41.09 |
| The escudo increased to 440 maravedis |
| Dec. 13, 1612— | | | (=.917) |
| Castellanos of 22 quilates at 576 maravedis |
| | | | | | | | |
| Philip IV. | Dec. 23, 1642— | | | | | | | |
| Escudo increased to 550 maravedis | 68 | 22 | 0 | 1058.86 | 1100.0 | 2.540 | 22 | 17 | 41.09 |
| | | (=.917) | | | | | |
| Jan. 12, 1643— | | | | | | | |
| Escudo increased to 612 maravedis | 68 | 22 | 0 | 1178.23 | 1224.0 | 2.283 | 22 | 17 | 41.09 |
| | | (=.917) | | | | | |
| Charles II. | Oct. 14 and Nov. 26, 1686— | | | | | | | |
| Escudo increased to 646 maravedis, and castellano to 850 maravedis of the new silver | 68 | 22 | 0 | 1250.0 | 1292.0 | 2.163 | 38 | 17 | 41.09 |
| | (=.917) | | | | | |
| Philip V. | March 17, 1719— | | | | | | | |
| Castellanos reduced to 714 maravedis | 68 | 22 | 0 | 1050.0 | 1088.0 | 2.567 | 20 | 04 | 41.09 |
| | | (=.917) | | | | | |
| Jan. 14 and 23, and Feb. 8, 1726— | | | | | | | |
| Escudo increased from 544 to 612 maravedis | 68 | 22 | 0 | 1181.25 | 1224.0 | 2.282 | 33 | 10 | 41.09 |
| | | (=.917) | | | | | |
| Sept. 2, 1728— | | | | | | | |
| Escudo increased to 680 maravedis | 68 | 22 | 0 | 1312.0 | 1360.0 | 2.054 | 37 | 22 | 41.09 |
| | | (=.917) | | | | | |
| July 16, 1730— | | | | | | | |
| New monetary scheme | 68 | 22 | 0 | 1280.0 | 1360.0 | 2.054 | 31 | 22 | 41.09 |
| | | (=.917) | | | | | |
| | | | Reals(Vellon) | | | | |
| June 23 and 29, 1742— | | | | | | | |
| Creation of Veintenes de oro | 130 56⁄100 | 21 | 3 | 2409.42 | 2611.33 | 1.069 | 20 | 0 | 21.38 |
| | | (=.906) | | | | | |
| Ferdinand VI. | Aug. 19 and Sept. 16, 1755— | | | | | | | |
| Increase of the pastas de oro from 118 to 119 reales las tres ochavas. | | | | | | | |
| Escudos (oro nacional) | 68 | 22 | O | 2538.68 | 2560.0 | 1.091 | 37 | 22 | 41.09 |
| | | (=.917) | | | | | |
| Veintenes (oro provincial) | 130 56⁄100 | 21 | 3 | 2538.21 | 2611.33 | 1.069 | 20 | 0 | 21.38 |
| | | (=.906) | | | | | |
| Charles III. | May 21 and 25, 1772— | | | | | | | |
| General reformation and lowering of the standard. | | | | | | | |
| Escudos (oro nacional) | 68 | 21 | 2 1⁄2 | 2495.18 | 2520.0 | 1.076 | 37 | 17 | 40.38 |
| | | (=.901) | | | | | |
| Veintenes (oro provincial) | 130 56⁄100 | 21 | 1 1⁄2 | 2476.15 | 2611.33 | 1.039 | 20 | 0 | 20.78 |
| | | (=.891) | | | | | |
| July 16, andAug. 24, 1779— | | | | | | | |
| The doblon of 8escudos reducedto 320 reals (oro nacional) | 68 | 21 | 2 1⁄2 | 2516.55 | 2720.0 | 1.009 | 40 | 0 | 40.38 |
| | | (=.901) | | | | | |
| The doblon of 8 escudos reduced to 320 reals (oro provincial) | 130 56⁄100 | 21 | 1 1⁄2 | 2486.25 | 2611.33 | 1.039 | 20 | 0 | 20.78 |
| | | (=.891) | | | | | |
| March 7, 1781— | | | | | | | |
| Oz. of bullion increased to 336 reals | 68 | 21 | 2 1⁄2 | 2642.2 | 2720.0 | 1.009 | 40 | 0 | 40.38 |
| | | (=.901) | | | | | |
| Feb. 26 & June 5, 1786— | | | | | | | |
| Lowering of standard. | | | | | | | |
| Oro nacional. | 68 | 21 | 0 | 2565.81 | 2720.0 | 0.980 | 40 | 0 | 39.20 |
| | | (=.875) | | | | | |
| Oro provincial | 131 23⁄35 | 20 | 1 1⁄2 | 2606.53 | 2633.14 | 0.982 | 20 | 0 | 19.65 |
| | | (=.849) | | | | | |
| Fernando VII. | Oct. 19, 1821— | | | | | | | |
| Reform of the rating. | | | | | | | |
| Oro nacional | 68 | 21 | 0 | 2686.26 | 2720.0 | 0.980 | 40 | 0 | 39.20 |
| | | (=.875) | | | | | |
| Oro provincial | 131 23⁄35 | 20 | 1 1⁄2 | 2606.53 | 2633.14 | 0.982 | 20 | 0 | 19.65 |
| | | (=.849) | | | | | |
| Aug. 20, 1824— | | | | | | | |
| Similar reform. | | | | | | | |
| Oro nacional | 68 | 21 | 0 | 2660.16 | 2720.0 | 0.980 | 40 | 0 | 39.20 |
| | | (=.875) | | | | | |
| Oro provincial | 131 23⁄35 | 20 | 1 1⁄2 | 2581.1 | 2633.14 | 0.982 | 20 | 0 | 19.65 |
| | | (=.849) | | | | | |
| Isabel II. | April 15, 1848— | | | | | | | |
| Reform of the monetary system. | | | | | | | |
| Centenes | 27 6⁄10 | 21 | 2 3⁄5 | 2736.0 | 2760.0 | 0.993 | 100 | 0 | 99.30 |
| | | (=.900) | | | | | |
| May 17, 1850— | | | | | | | |
| Augmentation of the tale | 28 | 21 | 2 3⁄5 | 2736.0 | 2800.0 | 0.979 | 100 | 0 | 97.90 |
| | | (=.900) | | | | | |
| Feb. 3, 1854— | | | | | | | |
| Reform of the monetary system | 27 43⁄100 | 21 | 2 3⁄5 | 2716.20 | 2743.0 | 1.0 | 100 | 0 | 100.0 |
| | | (=.900) | | | | | |
| Jan. 18, 1861— | | | | | | | |
| Reform of the tariff | 27 43⁄100 | 21 | 2 3⁄5 | 2729.18 | 2743.0 | 1.0 | 100 | 0 | 100.0 |
| | | (=.900) | | | | | |