Professor Teaches® Windows® 8.1
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0+0 vs. yesterday
—of peak
All-time peak
015 Sep 2026
Price history
Prices in every currency
Priced itemProfessor Teaches® Windows® 8.1 · $9.9940 currencies · ≈ converted into USD for comparison
Cheapest region right now: Russia at 385 ₽ ≈ $4.56, 54.4% below yours.
40 of 40
| ≈ in USD | ||||
|---|---|---|---|---|
 USD · United States | $9.99 | $9.99 | yours | $9.99 · 7 Sep 2026 |
 RUB · Russia | 385 ₽ | ≈ $4.56 | −54.4% | 385 ₽ · 7 Sep 2026 |
 INR · India | ₹480 | ≈ $5.00 | −49.9% | ₹480 · 7 Sep 2026 |
 UAH · Ukraine | 225 ₴ | ≈ $5.03 | −49.6% | 225 ₴ · 7 Sep 2026 |
 IDR · Indonesia | Rp 90.999 | ≈ $5.14 | −48.5% | Rp 90.999 · 7 Sep 2026 |
 PHP · Philippines | ₱335.00 | ≈ $5.33 | −46.6% | ₱335.00 · 7 Sep 2026 |
 VND · Vietnam | 142.000 ₫ | ≈ $5.46 | −45.4% | 142.000 ₫ · 7 Sep 2026 |
| USD-SASIA · South Asia | $5.49 | ≈ $5.49 | −45.0% | $5.49 · 7 Sep 2026 |
| USD-LATAM · Latin America, Middle East and Türkiye | $5.79 | ≈ $5.79 | −42.0% | $5.79 · 7 Sep 2026 |
 TWD · Taiwan | TWD 188 | ≈ $5.91 | −40.8% | TWD 188 · 7 Sep 2026 |
 SAR · Saudi Arabia | SAR 22.49 | ≈ $6.00 | −40.0% | SAR 22.49 · 7 Sep 2026 |
 CLP · Chile | CLP 5.750 | ≈ $6.02 | −39.7% | CLP 5.750 · 7 Sep 2026 |
 ZAR · South Africa | R 100,00 | ≈ $6.15 | −38.5% | R 100,00 · 7 Sep 2026 |
 CNY · China | ¥42.00 | ≈ $6.26 | −37.4% | ¥42.00 · 7 Sep 2026 |
| USD-CIS · CIS | $6.29 | ≈ $6.29 | −37.0% | $6.29 · 7 Sep 2026 |
 KWD · Kuwait | KWD 1.95 | ≈ $6.32 | −36.8% | KWD 1.95 · 7 Sep 2026 |
 BRL · Brazil | R$ 32,99 | ≈ $6.40 | −35.9% | R$ 32,99 · 7 Sep 2026 |
 KZT · Kazakhstan | 2 900 ₸ | ≈ $6.44 | −35.5% | 2 900 ₸ · 7 Sep 2026 |
 MYR · Malaysia | RM 26.75 | ≈ $6.55 | −34.5% | RM 26.75 · 7 Sep 2026 |
 THB · Thailand | ฿220.00 | ≈ $6.61 | −33.9% | ฿220.00 · 7 Sep 2026 |
 PEN · Peru | S/ 23.00 | ≈ $6.84 | −31.5% | S/ 23.00 · 7 Sep 2026 |
 QAR · Qatar | QAR 24.99 | ≈ $6.87 | −31.3% | QAR 24.99 · 7 Sep 2026 |
 MXN · Mexico | MXN 123.99 | ≈ $7.23 | −27.7% | MXN 123.99 · 7 Sep 2026 |
 UYU · Uruguay | UYU 310 | ≈ $7.72 | −22.8% | UYU 310 · 7 Sep 2026 |
 JPY · Japan | ￥1,200 | ≈ $7.74 | −22.5% | ￥1,200 · 7 Sep 2026 |
 SGD · Singapore | SGD 10.00 | ≈ $7.86 | −21.3% | SGD 10.00 · 7 Sep 2026 |
 AED · United Arab Emirates | AED 29.00 | ≈ $7.90 | −21.0% | AED 29.00 · 7 Sep 2026 |
 KRW · South Korea | ₩11,000 | ≈ $8.09 | −19.0% | ₩11,000 · 7 Sep 2026 |
 COP · Colombia | COP 26.000 | ≈ $8.37 | −16.3% | COP 26.000 · 7 Sep 2026 |
 HKD · Hong Kong | HKD 66.00 | ≈ $8.41 | −15.8% | HKD 66.00 · 7 Sep 2026 |
 NZD · New Zealand | NZD 14.75 | ≈ $8.49 | −15.0% | NZD 14.75 · 7 Sep 2026 |
 CAD · Canada | CAD 12.99 | ≈ $9.33 | −6.6% | CAD 12.99 · 7 Sep 2026 |
 CRC · Costa Rica | ₡4 600 | ≈ $10.23 | +2.4% | ₡4 600 · 7 Sep 2026 |
 AUD · Australia | AUD 14.50 | ≈ $10.33 | +3.4% | AUD 14.50 · 7 Sep 2026 |
 EUR · Euro area | 9,75 € | ≈ $11.25 | +12.6% | 9,75 € · 7 Sep 2026 |
 GBP · United Kingdom | £8.50 | ≈ $11.46 | +14.7% | £8.50 · 7 Sep 2026 |
 NOK · Norway | 110,00 kr | ≈ $11.77 | +17.8% | 110,00 kr · 7 Sep 2026 |
 ILS · Israel | ₪36.95 | ≈ $12.15 | +21.6% | ₪36.95 · 7 Sep 2026 |
 PLN · Poland | 45,99 zł | ≈ $12.23 | +22.4% | 45,99 zł · 7 Sep 2026 |
 CHF · Switzerland | CHF 10.99 | ≈ $13.43 | +34.5% | CHF 10.99 · 7 Sep 2026 |