实用工具 计算器
日常和实用计算器。带公式、示例和逐步计算的即时结果。免费在线计算器。
时间与日期
Calculate date differences, exact age, and time between events. Enter two dates — see days, weeks, months, and years between them. Free.
25个计算器
生态与环境
48个计算器
饮食与厨房
32个计算器
心脏内科
Evidence-based cardiology scoring tools for risk stratification, diagnosis, and treatment decisions in atrial fibrillation, ACS, heart failure, and more.
20个计算器
肾内科
Kidney function calculators including GFR estimation, electrolyte correction, acid-base analysis, and dialysis adequacy tools.
20个计算器
内分泌科
Clinical calculators for diabetes management, thyroid function, adrenal disorders, hormonal assessment, and metabolic syndrome evaluation.
20个计算器
神经内科
Clinical neurology tools for stroke risk, seizure classification, pain assessment, cognitive screening, and neurological scoring.
15个计算器
儿科
Evidence-based paediatric clinical tools for weight estimation, drug dosing, developmental assessment, and paediatric scoring systems.
20个计算器
妇产科
Clinical calculators for pregnancy dating, foetal assessment, obstetric risk scoring, and gynaecological conditions.
20个计算器
血液科
Clinical haematology tools for anaemia evaluation, coagulation assessment, transfusion requirements, and blood disorder diagnosis.
15个计算器
呼吸内科
Respiratory medicine calculators for lung function assessment, oxygenation, ventilation targets, and pulmonary risk stratification.
15个计算器
消化内科
Clinical gastroenterology tools for liver disease scoring, GI bleeding risk, nutritional assessment, and bowel disorder evaluation.
15个计算器
肿瘤科
Clinical oncology tools for cancer risk assessment, chemotherapy dosing, performance status scoring, and treatment toxicity grading.
15个计算器
急诊医学
Rapid clinical tools for emergency assessment, triage scoring, drug dosing, and critical care decision support.
20个计算器
临床评分
Validated clinical scoring tools used across specialties for disease severity assessment, risk stratification, and outcome prediction.
15个计算器
旅行
26个计算器
营养
12个计算器
女性健康
9个计算器
购物
9个计算器
年龄计算
8个计算器
科学
21个计算器
其他工具
18个计算器
汽车
燃油效率、电动车充电、贷款还款和公路旅行费用计算器。
25个计算器
数字媒体与技术
55个计算器
教育与学术
37个计算器
健身与运动
30个计算器
饮食与营养
25个计算器
家居(扩展)
55个计算器
生活方式与日常
40个计算器
其他
46个计算器
文本与开发者
20个计算器
EV & Clean Energy Calculators
Electric vehicle range, charging cost, solar ROI, battery degradation, and clean energy savings calculators.
22个计算器
Remote Work & WFH Calculators
Remote work salary adjustment, home office tax deduction, commute savings, and work-from-home cost comparison calculators.
17个计算器
健康与医疗转换器
Medical and health unit converters: blood sugar (mg/dL ↔ mmol/L), medication units (mg/mcg/IU), and other clinical conversions for patients and healthcare providers.
2个计算器
开发者转换器
Developer utility converters: JSON to CSV, Markdown to word count, and image resolution to AI vision tokens.
3个计算器
可持续发展转换器
Environmental impact and sustainability converters: plastic usage to ocean impact, international grade systems, and more.
2个计算器
自由职业者和零工经济
Financial calculators for freelancers and gig workers: retirement planning without employer match, invoice payment terms, and wage theft estimation.
3个计算器
病毒式金融趋势
TikTok-era viral finance calculators: doom spending, wealth gap visualizer, shrinkflation, quiet quitting cost, and greedflation price check.
5个计算器
工资和劳工权利
Calculators for minimum wage living analysis and labor rights — survive on minimum wage assessment by city.
1个计算器
3D打印工具
Calculators for 3D printing makers: print time, material cost, and filament usage estimation.
3个计算器
范生活和小房子
Calculators for tiny home and van life: build cost estimation, van conversion budgeting, and nomad lodging analysis.
3个计算器
乘车共享和远程工作
Calculators for rideshare drivers, public transit comparison, coworking decisions, and remote work tax deductions.
4个计算器
占星术与女性健康
Specialized calculators for numerology, lunar gardening, perimenopause symptom tracking, and HRT cost estimation.
4个计算器
现代房地产
Modern real estate calculators: ADU ROI, rent increase affordability, and roommate rent splitting.
3个计算器
现代育儿
Modern parenting cost and decision calculators: childcare comparison, screen time, and feeding cost.
3个计算器
创作者经济
YouTube revenue, TikTok earnings, Patreon income, sponsorship rates, engagement metrics, influencer pricing, and platform monetisation calculators.
3个计算器
游戏和数字转换器
Gaming and digital media converters: virtual currency to USD, FPS to frame time, and bitrate to file size.
3个计算器
园艺和户外转换器
Gardening unit converters: seed spacing to yield estimates and soil amendment rate conversions.
2个计算器
工艺品和纺织品转换器
Craft converters: yarn weight systems, knitting needle sizes, and fabric yardage to meters.
3个计算器
音乐和音频转换器
Audio converters for music producers: BPM to delay time and sample rate to file size with Nyquist info.
2个计算器
科学实验室转换器
Lab science converters: pH to hydrogen ion concentration and radioactivity unit conversion.
2个计算器