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John from USA ⭐⭐⭐⭐⭐

Great calculator! Saved me so much time when designing my hydraulic power unit.

2 days ago

Maria from Germany ⭐⭐⭐⭐

Very useful tool! Would love to see metric units as default option.

1 week ago

Chen from China ⭐⭐⭐⭐⭐

Perfect for quick calculations! The HS code lookup saved me at customs.

3 days ago

2026-04-15 Added metric units as default option - based on user feedback from Maria (Germany)

2026-04-14 Added HS code lookup for Vietnam & Malaysia - multiple user requests

2026-04-13 Improved calculator precision - based on engineering user feedback