Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.
Kaweco

Mini Cartridge Converter | Sport Fountain Pens

£7.50
/
Tax included. Shipping calculated at checkout.
  • Free UK shipping on orders over £85
  • In stock, ready to ship
  • Inventory on the way

Mini Convertor for Kaweco Sport Fountain Pen

2025 Update: Rather than relying on disposable ink cartridges, this refillable mechanism allows you to draw ink directly from a bottle or inkwell. Simply immerse the nib and pull the plunger to fill. The converter installs like a standard cartridge, making the transition seamless.

By eliminating single-use cartridges, you'll reduce plastic waste while maintaining the same reliable performance. Refilling is straightforward and can be done without removing the converter from your pen.

Thanks to the clever folding mechanism on the piston rod, the converter can be reduced in size by almost 20% while maintaining the same ink volume.

  • Suitable for all fountain pens in the Kaweco SPORT series.
  • Weight: 2g
  • Length: 3.3cm
  • Length Open: 4.2cm
  • Capacity: 0.47ml

Kaweco is a German writing brand with over a century of history, known for its compact, pocket-sized pens and straightforward design approach.

Built around durability and ease of use, each piece is made to be carried daily rather than kept away. From lightweight plastics to solid metal bodies, the range balances function, portability and a quiet, timeless aesthetic.

We ship to all UK Mainland addresses.

Shipping choices and charges are calculated by weight and size and we offer the following shipping options:
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Small items + large letter size (parcels up to 250g) :

Royal Mail 24: (delivery aim next working day but not guaranteed; fully tracked): £6.00

Royal Mail 48: (delivery aim 2/3 working days but not guaranteed; fully tracked): £4.50
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Standard Parcels (up to 3kg) :

Royal Mail 24: (delivery aim next working day but not guaranteed; fully tracked): £8.00

Royal Mail 48: (delivery aim 2/3 working days but not guaranteed; fully tracked): £6.50

Royal Mail Special Delivery: (next day guaranteed service; fully tracked): £10.00
Note. this service has a 2kg limit (rather than 3kg)
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Large Parcels (3kg +) :

Royal Mail 24: (delivery aim next working day but not guaranteed; fully tracked): £12.00

Royal Mail 48: (delivery aim 2/3 working days but not guaranteed; fully tracked): £10.00

Royal Mail Special Delivery: (next day guaranteed service; fully tracked): £15.00
Note. this service is for 2kg+ (rather than 3kg+)
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General

Any order over £85 is free delivery and will be shipped using a Tracked 48 service unless another service is specified.

Delivery methods are auto-calculated at checkout and are dependent on size and weight.

Orders received by 1 pm will usually be dispatched same day. Orders received after 1pm will ship on the next available working day (Mon-Fri).

Note: We do not usually dispatch orders on Saturdays or Sundays.

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Impressive

German Writing Instruments Since 1883

Founded in Heidelberg in 1883, Kaweco is one of Germany's oldest writing instrument manufacturers. Its reputation rests on functional engineering, durable materials and designs that have remained relevant for generations. The octagonal Sport, introduced in 1911, remains one of the most recognisable pocket fountain pens, while collections such as Liliput, Special, Student and Supra extend the range from minimalist everyday tools to precision-machined metal pens.

SHOP KAWECO +

Designed to Be Used

Kaweco focuses on writing instruments that favour longevity over trends. Pens are available in ABS resin, aluminium, brass, stainless steel and copper, with materials chosen for their weight, balance and character. Many metal finishes develop a natural patina through use, making each pen individual over time. Fountain pens are fitted with easily interchangeable nibs in a wide range of sizes, allowing writers to tailor the feel without replacing the pen.

A Writing System That Grows

Beyond fountain pens, the Kaweco range includes rollerballs, ballpoints, mechanical pencils, inks, clips, converters and leather accessories designed to work together across the collection. Whether choosing the compact Sport, the ultra-minimal Liliput or the full-sized Student, each shares the same commitment to practical engineering, dependable performance and understated design that has defined the brand for well over a century.

FAQs

Kaweco is a German brand with production centred in Germany, combining traditional manufacturing with modern precision engineering.

Most Kaweco fountain pens accept international short ink cartridges, while many models also support compatible Kaweco converters.

Yes. Many Kaweco models feature interchangeable nib units, allowing different nib widths to be fitted without replacing the pen.

Brass and copper naturally develop a patina through handling and exposure to air, giving each pen an individual appearance over time.

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