Free tools · US & Korea
A sky full of free tools.
Calculators and checkers for news in the US and Korea, checked against official sources. Each bright star is a topic; the busiest shine brightest.
Better days, one tool at a time.
Plus beaux jours is French for “better days.”
Featured tools
US retirement & tax
The 2027 numbers for Social Security, 401(k) limits and federal tax brackets arrive in October and November. These tools turn them into your own check, paycheck and tax bill.
2027 Medicare Part D Cost Calculator
Estimate your 2027 Part D drug costs month by month: $700 deductible, 25% coinsurance, the $2,400 out-of-pocket cap, and Medicare Prescription Payment Plan bills.
Official 2027 numbers (CMS)Newpart-d.plusbeauxjours.comLaunched2027 Tax Brackets Calculator
Compare your federal tax under the 2026 and 2027 brackets and standard deduction, for your filing status and income, including the senior $6,000 deduction.
2027 brackets projectedNewtax2027.plusbeauxjours.comLaunched2027 401(k) Max-Out Calculator
Find how much to set aside from each paycheck to max out your 401(k) in 2027, including the 50+ catch-up and the age 60 to 63 super catch-up.
2027 limits projectedNew401k.plusbeauxjours.comLaunched2027 Social Security COLA Calculator
See your January 2027 Social Security check after the COLA and the Medicare Part B premium, and check whether you qualify for the $90 Medicare payment.
Forecast until Oct 14Newcola.plusbeauxjours.comLaunched
US everyday
Quick checks for news that might reach your home: whether the bottle in your fridge is part of a recall, what past El Niño winters brought to your city, and what to stock before a hurricane.
Hurricane supply calculator
Enter your household, pets and days to get an exact hurricane supply checklist: gallons of water, food, meds, batteries and documents, from Ready.gov, CDC and Red Cross guidance.
Ready.gov & CDC guidanceNewhurricane-kit.plusbeauxjours.comLaunchedWi-Fi QR Card Maker
Make a printable guest Wi-Fi sign with a QR code that joins the network in one tap. Everything stays in your browser: the password is never sent or stored.
Works offline · privateNewwifi-card.plusbeauxjours.comLaunchedEl Niño Winter Snow Outlook by City
Will your city get snow this winter? NOAA's December to February outlook next to the snowfall your city or ski area got in past strong El Niño winters.
Updated with NOAA dataNewsnow.plusbeauxjours.comLaunchedGatorade Recall Lot Code Checker
Type the code printed on the neck of a 28 oz Gatorade bottle and get a clear yes or no against the recalled lots, with what to do next.
Official FDA lot listNewrecall.plusbeauxjours.comLaunched
한국 돈·생활
Korea: money and daily life
내 돈과 명의를 지키고, 적금·대출·연말정산을 따져볼 때 필요한 확인과 계산이에요. 금융당국 발표와 법령을 출처로 달았어요.
2026 단풍 절정 캘린더
주말을 고르면 그날 단풍 절정 예보가 있는 산·수목원을 가까운 순으로 보여 줘요. 산림청·웨더아이·케이웨더 예보와 기상청 관측을 한 화면에.
기상청 관측 매일 갱신새 도구danpung.plusbeauxjours.com출시주담대 금리·스트레스 DSR 계산기
남은 원금·기간·금리만 넣으면 금리 0.25%p 단계별 월 상환액, 첫 달 원금·이자, 수도권 3%·지방 0.75% 스트레스 DSR을 반영한 DSR 40% 필요 연소득을 한 화면에 계산해요.
2026 하반기 스트레스 DSR 기준새 도구mortgage-rate.plusbeauxjours.com출시청년미래적금 계산기
월 납입액만 넣으면 정부기여금 6%·12%와 비과세 이자까지 더한 3년 만기 금액을 계산해요. 출생연도로 2차 신청일, 청년도약계좌 갈아타기 비교, 14개 기관 금리도 확인해요.
2차 신청·10/7 공시 금리 반영새 도구youth-savings.plusbeauxjours.com출시고향사랑기부 세액공제 계산기
기부액만 넣으면 세액공제, 답례품 30%, 실제 부담액을 바로 계산해요. 결정세액이 0원일 때와 특별재난지역 33% 공제도 함께 알려드려요.
2026년 공제율 반영새 도구gohyang.plusbeauxjours.com출시금융권 해킹 유출 확인·대응 체크
신한·KB국민·하나·부산은행 등 이번 해킹 유출에 내 금융사가 해당되는지 확인하고, 명의도용 차단과 지급정지처럼 지금 할 일을 순서대로 알려드려요.
하루 2회 업데이트새 도구bank-leak.plusbeauxjours.com출시
한국 교육
Korea: school and exams
수험생과 가족을 위한 도구예요. 2027학년도 대학수학능력시험은 11월 19일이에요.
수능 응원 카드 만들기
이름만 넣으면 2027학년도 수능(11월 19일) D-day가 들어간 응원 카드가 완성돼요. 응원 문구 60개와 수능 준비물 체크리스트도 있어요.
2027학년도 수능 기준새 도구suneung.plusbeauxjours.com출시
When a tool’s season or news story is over, it isn’t deleted. It moves to the archive of past tools, with the date and the reason.
How every tool is built
The same rules apply to all of them, whatever the topic or language. Read how we check numbers.
- Sourced
- Each figure links to where it came from: an agency notice, a statute or a named forecast.
- Dated
- Each tool shows when it was last updated and when each source was checked.
- Labeled
- ProjectedOfficialA dashed badge means the number can still change. It switches to solid once the agency publishes.
- Private
- The math runs in your browser. No sign-up, and what you type is not sent to us.