Heading to Japan from the U.S.? Good news: many of your devices will work — but not all.
From plug shapes to voltage quirks, there are a few things you need to know before you charge up abroad.
Here’s what to expect — and what to pack — so you’re never caught without power.
🔌 Plug Shape: Mostly Compatible!
Japan uses Type A plugs — the same two flat prongs as the U.S.
✅ Good news: Most American devices plug in just fine.
⚠️ Heads up: If your device has a Type B plug (the one with a third, round grounding prong), it might not fit in all Japanese outlets.
🏨 Some hotels or newer buildings support Type B, but many traditional spots do not.
🧳 What to pack: A Type B to Type A adapter — they’re tiny, inexpensive, and great peace of mind.
⚡ Voltage Difference: 100V vs. 120V
Japan uses 100 volts, while the U.S. uses 120 volts.
Most small electronics — phone chargers, laptops, tablets — are dual voltage and work across a wide range (usually 100–240V).
🧐 To check: Look at the label on your charger. If it says Input: 100-240V, you’re totally safe.
⚠️ Some older appliances (like hairdryers or electric razors) might not like the drop in voltage.
🌀 Frequency Varies by Region
Japan is split:
- Eastern Japan (Tokyo, Sapporo) uses 50 Hz
- Western Japan (Kyoto, Osaka, Hiroshima) runs on 60 Hz
Most modern devices don’t care — they’ll work fine either way.
📻 But older appliances that rely on frequency (like analog clocks or electric timers) might act a little funny.
🔧 Adapter vs. Converter: What’s the Difference?
- Plug Adapter: Changes the shape of your plug so it fits. Doesn’t change the electricity.
- Voltage Converter: Actually changes the power level. Only needed for high-voltage tools that aren’t dual voltage.
💡 If you’re just charging your phone, camera, or laptop — you only need a plug adapter (if that).
💻 Phones, Laptops & Chargers: No Stress
These are the easiest.
📱 Most modern tech — MacBooks, iPhones, tablets, camera chargers — are built for travel and work across different voltages and frequencies.
So you’re good to go with just the right plug shape.
🧳 What to Pack for Japan (Power Edition)
Here’s a simple checklist:
- ✅ A Type A/B plug adapter
- ✅ Check the voltage range on any non-tech devices
- ✅ Skip the hairdryer and use the one in your hotel
📦 Optional: A universal travel adapter with USB ports — it covers you for future trips, too.
🌸 Final Takeaway: You’re Almost Plug-and-Play
If you’re coming from the U.S., Japan is one of the easiest places to stay charged.
Most of your devices will work as-is. Just pack a tiny plug adapter for Type B plugs and you’re golden.
Now go wander temples, slurp some ramen, and snap those cherry blossom pics — your phone’s got plenty of battery. 🍜📷
Safe travels and happy exploring! ✈️ Let me know if you’d like a printable travel checklist or adapter recs.
